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<lastmod>2026-03-18T07:34:41.351349+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/add-and-remove-dictionary-entries</loc>
<lastmod>2026-03-18T07:34:47.174192+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/merge-two-dictionaries</loc>
<lastmod>2026-03-18T07:40:06.322993+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/iterate-through-dictionary-keys-and-values</loc>
<lastmod>2026-03-18T07:39:39.554444+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/count-item-occurrences-with-a-dictionary</loc>
<lastmod>2026-03-18T07:39:46.624713+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/create-and-use-a-set</loc>
<lastmod>2026-03-18T07:46:01.862115+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/check-membership-in-a-set</loc>
<lastmod>2026-03-18T07:46:13.398046+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/add-and-remove-set-elements</loc>
<lastmod>2026-03-18T07:46:20.797442+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/convert-a-list-to-a-set-to-remove-duplicates</loc>
<lastmod>2026-03-18T07:48:42.227436+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/group-words-by-their-first-letter</loc>
<lastmod>2026-03-18T07:48:48.569866+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/invert-a-dictionary-mapping</loc>
<lastmod>2026-03-18T07:48:56.251988+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/keep-only-dictionary-entries-above-a-value-limit</loc>
<lastmod>2026-03-18T07:50:59.616769+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/merge-dictionaries-by-summing-matching-values</loc>
<lastmod>2026-03-18T07:51:06.880854+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/count-word-frequencies-in-a-text</loc>
<lastmod>2026-03-18T07:51:12.729983+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/access-a-nested-dictionary-safely</loc>
<lastmod>2026-03-18T07:53:13.516507+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/find-the-intersection-and-union-of-two-sets</loc>
<lastmod>2026-03-18T07:53:20.025639+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/group-students-by-grade</loc>
<lastmod>2026-03-18T07:53:05.381838+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/build-a-frequency-dictionary-and-return-the-most-common-item</loc>
<lastmod>2026-03-18T07:54:58.447076+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/find-values-that-appear-in-exactly-one-of-two-sets</loc>
<lastmod>2026-03-18T07:55:06.628499+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/reverse-a-string-with-slicing-and-reversed</loc>
<lastmod>2026-03-18T17:37:18.562956+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/check-if-string-is-a-palindrome</loc>
<lastmod>2026-03-18T17:37:33.635359+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/count-vowels-using-string-methods</loc>
<lastmod>2026-03-18T17:37:48.200538+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/find-index-of-a-substring</loc>
<lastmod>2026-03-18T17:38:05.090226+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/split-a-sentence-into-words-and-join-them</loc>
<lastmod>2026-03-18T17:38:21.583757+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/normalize-whitespace-in-a-string</loc>
<lastmod>2026-03-18T17:38:33.502974+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/convert-string-to-title-case</loc>
<lastmod>2026-03-18T17:38:42.966269+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/find-all-occurrences-of-a-substring</loc>
<lastmod>2026-03-18T17:38:49.120999+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/replace-substring-ignoring-case</loc>
<lastmod>2026-03-18T17:38:55.457441+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/extract-integers-from-a-string</loc>
<lastmod>2026-03-18T17:39:01.5735+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/remove-adjacent-duplicate-characters</loc>
<lastmod>2026-03-18T18:33:37.333125+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/create-a-url-slug-from-text</loc>
<lastmod>2026-03-18T18:33:44.936749+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/count-word-frequencies-in-a-sentence</loc>
<lastmod>2026-03-18T18:33:50.432756+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/trim-and-pad-a-string</loc>
<lastmod>2026-03-18T18:33:55.903863+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/check-if-two-strings-are-anagrams</loc>
<lastmod>2026-03-18T18:34:02.977006+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/mask-all-but-last-four-characters</loc>
<lastmod>2026-03-18T18:34:08.614554+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/implement-a-simple-template-formatter</loc>
<lastmod>2026-03-18T18:34:14.837451+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/wrap-text-to-a-fixed-line-width</loc>
<lastmod>2026-03-18T18:34:20.563291+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/compress-repeated-characters-using-counts</loc>
<lastmod>2026-03-18T18:34:26.644614+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/find-the-longest-word-in-each-sentence</loc>
<lastmod>2026-03-18T18:34:34.604824+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/keep-only-even-numbers-from-a-list</loc>
<lastmod>2026-03-20T15:32:15.32476+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/transform-each-item-in-a-list</loc>
<lastmod>2026-03-20T15:32:22.599372+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/extract-unique-elements-while-keeping-order</loc>
<lastmod>2026-03-20T15:32:41.435903+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/flatten-a-one-level-nested-list</loc>
<lastmod>2026-03-20T15:32:48.912247+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/count-occurrences-using-a-dictionary</loc>
<lastmod>2026-03-20T15:32:58.089348+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/select-specific-keys-from-a-dictionary</loc>
<lastmod>2026-03-20T15:33:04.932592+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/group-words-by-first-letter-using-defaultdict</loc>
<lastmod>2026-03-20T15:33:19.495836+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/build-an-index-mapping-from-a-list</loc>
<lastmod>2026-03-20T15:33:38.311001+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/convert-pairs-into-a-dictionary-of-lists</loc>
<lastmod>2026-03-20T15:33:46.234394+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/merge-list-of-dictionaries-by-key</loc>
<lastmod>2026-03-20T15:34:08.183215+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/transpose-a-2d-list</loc>
<lastmod>2026-03-20T15:36:39.170495+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/filter-and-transform-using-comprehension</loc>
<lastmod>2026-03-20T15:36:49.42158+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/split-list-into-fixed-size-chunks</loc>
<lastmod>2026-03-20T15:36:54.720868+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/update-a-nested-dictionary-safely</loc>
<lastmod>2026-03-20T15:37:00.008523+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/invert-a-dictionary-with-duplicate-values</loc>
<lastmod>2026-03-20T15:37:05.441631+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/generate-sliding-windows-of-size-n</loc>
<lastmod>2026-03-20T15:37:11.891342+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/deep-merge-nested-dictionaries</loc>
<lastmod>2026-03-20T15:37:17.336513+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/group-items-by-two-attributes</loc>
<lastmod>2026-03-20T15:37:34.884285+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/flatten-a-nested-dictionary-into-dotted-keys</loc>
<lastmod>2026-03-20T15:38:01.069821+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/build-grouped-counts-from-a-list-of-records</loc>
<lastmod>2026-03-20T15:38:19.242063+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/square-number-using-lambda</loc>
<lastmod>2026-03-20T16:07:09.644551+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/convert-strings-to-integers-with-map</loc>
<lastmod>2026-03-20T16:07:20.798105+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/filter-falsy-values-from-list</loc>
<lastmod>2026-03-20T16:07:43.056018+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/sort-words-by-length-using-a-lambda-key</loc>
<lastmod>2026-03-20T16:08:01.983604+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/transform-tuple-elements-using-map</loc>
<lastmod>2026-03-20T16:08:27.540812+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/chain-map-and-filter-to-square-even-numbers</loc>
<lastmod>2026-03-20T16:08:43.244265+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/add-two-lists-elementwise-with-map</loc>
<lastmod>2026-03-20T16:08:53.777054+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/sort-a-list-of-dictionaries-by-a-nested-value</loc>
<lastmod>2026-03-20T16:09:10.750275+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/sort-names-by-last-name-using-a-lambda-key</loc>
<lastmod>2026-03-20T16:09:22.940779+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/map-filter-join-strings-into-csv</loc>
<lastmod>2026-03-20T16:09:34.102705+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/use-sorted-with-multiple-sort-criteria</loc>
<lastmod>2026-03-20T16:09:49.169564+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/filter-values-using-a-lambda-condition</loc>
<lastmod>2026-03-20T16:09:59.404295+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/compose-multiple-functions-into-a-single-map-pipeline</loc>
<lastmod>2026-03-20T16:10:23.788019+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/sort-items-with-a-key-that-handles-missing-values</loc>
<lastmod>2026-03-20T16:10:30.788774+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/build-a-reusable-filter-function-with-lambda</loc>
<lastmod>2026-03-20T16:10:41.313985+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/validate-integer-input</loc>
<lastmod>2026-03-20T18:17:12.29308+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/safe-divide-with-default</loc>
<lastmod>2026-03-20T18:17:18.666343+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/parse-float-or-none</loc>
<lastmod>2026-03-20T18:17:24.272295+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/clamp-list-index</loc>
<lastmod>2026-03-20T18:17:29.634864+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/return-default-when-key-missing</loc>
<lastmod>2026-03-20T18:17:37.603838+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/sanitize-username-input</loc>
<lastmod>2026-03-20T18:17:44.066841+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/validate-date-yyyy-mm-dd</loc>
<lastmod>2026-03-20T18:17:52.338805+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/convert-text-to-int-with-range-check</loc>
<lastmod>2026-03-20T18:17:58.51405+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/handle-missing-keys-in-a-dictionary</loc>
<lastmod>2026-03-20T18:18:05.488063+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/normalize-and-validate-an-email-address</loc>
<lastmod>2026-03-20T18:18:12.269252+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/process-a-list-while-skipping-invalid-items</loc>
<lastmod>2026-03-20T18:18:20.40398+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/validate-password-strength-rules</loc>
<lastmod>2026-03-20T18:18:28.776806+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/validate-record-required-optional-fields</loc>
<lastmod>2026-03-20T18:18:36.038752+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/parse-mixed-input-and-collect-valid-values-with-errors</loc>
<lastmod>2026-03-20T18:18:42.372493+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/apply-multiple-validation-rules-and-return-all-failures</loc>
<lastmod>2026-03-20T18:18:50.814868+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/parse-json-into-python-objects</loc>
<lastmod>2026-03-23T17:05:42.677202+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/count-items-with-counter</loc>
<lastmod>2026-03-23T17:05:50.647738+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/compute-a-square-root-with-math</loc>
<lastmod>2026-03-23T17:06:02.672158+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/round-numbers-up-and-down-with-math</loc>
<lastmod>2026-03-23T17:06:13.828972+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/create-consecutive-pairs-with-zip</loc>
<lastmod>2026-03-23T17:06:28.194049+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/use-combinations-to-count-pairs</loc>
<lastmod>2026-03-23T17:06:35.814918+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/group-items-by-key-using-defaultdict</loc>
<lastmod>2026-03-23T17:06:43.486645+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/compute-running-totals-with-accumulate</loc>
<lastmod>2026-03-23T17:06:50.163042+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/rotate-a-sequence-using-deque</loc>
<lastmod>2026-03-23T17:06:56.150941+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/merge-two-dictionaries-with-later-values-overwriting-earlier-ones</loc>
<lastmod>2026-03-23T17:08:12.813666+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/serialize-json-with-sorted-keys</loc>
<lastmod>2026-03-23T17:08:19.300817+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/chunk-an-iterable-into-fixed-size-blocks</loc>
<lastmod>2026-03-23T17:08:25.609845+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/generate-pair-combinations-from-a-list</loc>
<lastmod>2026-03-23T17:08:31.060931+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/use-product-to-generate-coordinate-pairs</loc>
<lastmod>2026-03-23T17:08:37.843196+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/use-enumerate-to-track-positions</loc>
<lastmod>2026-03-23T17:08:43.349195+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/count-the-most-common-items-with-counter</loc>
<lastmod>2026-03-23T17:08:50.440813+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/implement-a-simple-lru-cache</loc>
<lastmod>2026-03-23T17:08:59.327808+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/stream-parse-json-lines-into-records</loc>
<lastmod>2026-03-23T17:09:05.274489+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/build-grouped-frequency-report-with-counter-and-defaultdict</loc>
<lastmod>2026-03-23T17:09:13.094585+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/use-itertools-to-generate-unique-pair-schedules</loc>
<lastmod>2026-03-23T17:09:23.762362+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/create-a-simple-class</loc>
<lastmod>2026-04-07T17:58:44.684179+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/instantiate-an-object</loc>
<lastmod>2026-04-07T17:58:44.189062+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/implement-a-constructor</loc>
<lastmod>2026-04-07T17:58:43.668411+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/set-instance-attributes</loc>
<lastmod>2026-04-07T17:58:43.171557+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/access-instance-attributes-using-self</loc>
<lastmod>2026-04-07T17:58:42.679382+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/define-class-attributes</loc>
<lastmod>2026-04-07T17:58:42.180642+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/modify-instance-attributes</loc>
<lastmod>2026-04-07T17:58:41.649468+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/use-default-constructor-values</loc>
<lastmod>2026-04-07T17:58:41.142614+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/add-a-method-to-a-class</loc>
<lastmod>2026-04-07T17:58:40.636815+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/return-a-summary-of-object-data</loc>
<lastmod>2026-04-07T17:58:39.71717+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/initialize-multiple-instances-with-different-data</loc>
<lastmod>2026-04-07T17:58:39.195335+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/compare-class-attributes-and-instance-attributes</loc>
<lastmod>2026-04-07T17:58:38.687746+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/count-objects-using-a-class-attribute</loc>
<lastmod>2026-04-07T17:58:38.113905+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/update-shared-class-data-from-instance-method</loc>
<lastmod>2026-04-07T17:58:37.563667+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/build-a-student-record-class</loc>
<lastmod>2026-04-07T17:58:37.015108+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/validate-basic-constructor-inputs</loc>
<lastmod>2026-04-07T17:58:36.451366+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/count-objects-created-by-a-class</loc>
<lastmod>2026-04-07T17:58:35.8407+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/update-shared-class-attribute-observe-change</loc>
<lastmod>2026-04-07T17:58:34.41273+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/implement-instance-method-to-update-state</loc>
<lastmod>2026-04-07T18:50:21.536694+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/create-class-method-constructor-from-dictionary</loc>
<lastmod>2026-04-07T18:50:21.003891+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/write-a-static-method-utility-for-validation</loc>
<lastmod>2026-04-07T18:50:20.295058+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/expose-an-attribute-with-a-read-only-property</loc>
<lastmod>2026-04-07T18:50:19.300221+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/add-a-property-getter-and-setter-for-validation</loc>
<lastmod>2026-04-07T18:50:18.786557+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/implement-a-computed-property-for-a-derived-value</loc>
<lastmod>2026-04-07T18:50:18.251736+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/use-a-class-method-to-track-instance-count</loc>
<lastmod>2026-04-07T18:50:17.636901+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/implement-a-class-method-to-clone-an-object-with-changes</loc>
<lastmod>2026-04-07T18:50:16.289006+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/parse-input-with-a-static-method-helper</loc>
<lastmod>2026-04-07T18:50:15.675018+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/validate-and-sanitize-data-in-a-property-setter</loc>
<lastmod>2026-04-07T18:50:15.110309+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/reset-state-using-property-deleter</loc>
<lastmod>2026-04-07T18:50:14.327958+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/compare-instance-and-static-methods</loc>
<lastmod>2026-04-07T18:50:13.437674+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/use-a-property-to-format-display-output</loc>
<lastmod>2026-04-07T18:50:12.938634+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/build-an-alternate-constructor-from-a-string</loc>
<lastmod>2026-04-07T18:50:11.890152+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/update-shared-class-state-with-class-method</loc>
<lastmod>2026-04-07T18:50:11.308025+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/use-a-property-setter-to-enforce-a-value-range</loc>
<lastmod>2026-04-07T18:50:10.252262+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/implement-base-and-derived-classes</loc>
<lastmod>2026-04-08T10:42:51.983449+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/override-method-in-subclass</loc>
<lastmod>2026-04-08T10:42:52.447228+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/use-super-to-call-parent-init</loc>
<lastmod>2026-04-08T10:42:51.522302+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/implement-polymorphic-describe-methods</loc>
<lastmod>2026-04-08T10:42:51.054414+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/check-isinstance-and-issubclass-relations</loc>
<lastmod>2026-04-08T10:42:50.109465+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/use-super-across-a-multi-level-inheritance-chain</loc>
<lastmod>2026-04-08T10:42:50.577828+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/create-abstract-base-with-concrete-subclasses</loc>
<lastmod>2026-04-08T10:42:49.175259+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/override-methods-preserving-parent-behavior</loc>
<lastmod>2026-04-08T10:42:49.638167+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/dispatch-actions-based-on-subclass-type-polymorphically</loc>
<lastmod>2026-04-08T10:42:48.238349+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/extend-parent-__init__-with-extra-attributes</loc>
<lastmod>2026-04-08T10:42:48.713726+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/implement-a-simple-multiple-inheritance-example</loc>
<lastmod>2026-04-08T10:42:47.761723+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/create-a-common-interface-for-different-subclasses</loc>
<lastmod>2026-04-08T10:42:47.27978+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/call-the-same-method-on-different-subclass-objects</loc>
<lastmod>2026-04-08T10:42:46.734388+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/build-a-multi-level-class-hierarchy-with-shared-behavior</loc>
<lastmod>2026-04-08T10:42:46.133538+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/implement-polymorphic-processing-for-different-subclass-types</loc>
<lastmod>2026-04-08T10:42:45.562889+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/use-multiple-inheritance-to-combine-two-parent-behaviors</loc>
<lastmod>2026-04-08T10:42:44.973942+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/create-an-abstract-base-class-and-enforce-method-implementation</loc>
<lastmod>2026-04-08T10:42:43.973441+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/compare-overridden-and-inherited-behavior-in-a-class-hierarchy</loc>
<lastmod>2026-04-08T10:42:42.508779+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/implement-a-private-attribute-in-a-class</loc>
<lastmod>2026-04-08T15:41:04.728779+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/add-getter-and-setter-methods-for-an-attribute</loc>
<lastmod>2026-04-08T15:41:04.136398+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/convert-attribute-access-to-a-property</loc>
<lastmod>2026-04-08T15:41:02.957041+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/use-a-protected-attribute-in-a-subclass</loc>
<lastmod>2026-04-08T15:41:03.557041+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/implement-validation-in-property-setter</loc>
<lastmod>2026-04-08T15:41:02.381844+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/create-read-only-computed-property</loc>
<lastmod>2026-04-08T15:41:01.85083+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/access-name-mangled-private-attribute</loc>
<lastmod>2026-04-08T15:41:01.308472+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/enforce-type-checking-in-property-setter</loc>
<lastmod>2026-04-08T15:41:00.600357+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/use-a-property-setter-to-restrict-invalid-values</loc>
<lastmod>2026-04-08T15:40:59.79763+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/sync-related-attributes-via-property-setter</loc>
<lastmod>2026-04-08T15:40:59.021744+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/create-write-once-attribute-with-property</loc>
<lastmod>2026-04-08T15:40:57.55059+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/protect-internal-state-with-name-mangling</loc>
<lastmod>2026-04-08T15:40:56.84089+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/validate-multiple-related-attributes-with-properties</loc>
<lastmod>2026-04-08T15:40:55.672599+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/design-a-class-with-controlled-read-and-write-access</loc>
<lastmod>2026-04-08T15:40:54.359329+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/implement-str-for-a-point-class</loc>
<lastmod>2026-04-11T11:43:10.623416+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/define-repr-for-a-person-object</loc>
<lastmod>2026-04-11T11:43:11.101721+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/compare-objects-using-eq</loc>
<lastmod>2026-04-11T11:43:10.140464+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/support-len-with-dunder-len</loc>
<lastmod>2026-04-11T11:43:09.664981+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/overload-add-for-a-vector2d</loc>
<lastmod>2026-04-11T11:43:09.202165+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/implement-lt-and-le-for-version-objects</loc>
<lastmod>2026-04-11T11:43:08.724441+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/make-objects-indexable-with-getitem</loc>
<lastmod>2026-04-11T11:43:08.25684+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/support-slicing-in-getitem-for-a-sequence</loc>
<lastmod>2026-04-11T11:43:07.778767+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/allow-item-assignment-with-setitem</loc>
<lastmod>2026-04-11T11:43:06.816317+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/implement-contains-for-membership-checks</loc>
<lastmod>2026-04-11T11:43:07.289988+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/customize-truthiness-with-bool</loc>
<lastmod>2026-04-11T11:43:05.485346+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/use-eq-and-hash-for-hashable-objects</loc>
<lastmod>2026-04-11T11:43:05.954294+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/support-in-place-addition-with-iadd</loc>
<lastmod>2026-04-11T11:43:05.004211+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/implement-multiple-comparison-magic-methods-for-a-class</loc>
<lastmod>2026-04-11T11:43:04.526692+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/implement-dunder-iter-for-custom-container</loc>
<lastmod>2026-04-11T11:43:03.435661+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/reverse-custom-sequence-dunder-reversed</loc>
<lastmod>2026-04-11T11:43:04.023937+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/implement-a-book-and-author-composition</loc>
<lastmod>2026-04-11T12:56:55.291956+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/create-a-shoppingcart-with-product-items</loc>
<lastmod>2026-04-11T12:56:54.79096+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/model-a-playlist-with-track-components</loc>
<lastmod>2026-04-11T12:56:54.328414+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/implement-an-order-composed-of-line-items</loc>
<lastmod>2026-04-11T12:56:53.864623+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/implement-a-hotel-composed-of-rooms-and-reservations</loc>
<lastmod>2026-04-11T12:56:53.397199+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/compose-a-vehicle-from-engine-and-sensor-components</loc>
<lastmod>2026-04-11T12:56:52.919416+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/implement-a-user-profile-composed-of-address-and-contacts</loc>
<lastmod>2026-04-11T12:56:52.451839+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/create-a-media-library-composed-of-albums-and-tracks</loc>
<lastmod>2026-04-11T12:56:51.986574+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/build-a-bank-account-that-delegates-to-a-transaction-history</loc>
<lastmod>2026-04-11T12:56:51.518855+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/model-a-classroom-composed-of-students-and-subjects</loc>
<lastmod>2026-04-11T12:56:51.041268+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/create-a-team-composed-of-players-and-a-coach</loc>
<lastmod>2026-04-11T12:56:50.57299+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/build-a-library-system-with-books-members-and-borrow-records</loc>
<lastmod>2026-04-11T12:56:50.094901+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/design-ecommerce-order-system-with-cart-items-and-payments</loc>
<lastmod>2026-04-11T12:56:49.626213+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/model-hospital-patients-doctors-appointments</loc>
<lastmod>2026-04-11T12:56:49.131571+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/create-an-inventory-system-with-products-warehouses-and-stock-entries</loc>
<lastmod>2026-04-11T12:56:48.639422+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/build-a-school-management-system-with-classes-students-and-teachers</loc>
<lastmod>2026-04-11T12:56:48.087631+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/build-an-adder-function-factory</loc>
<lastmod>2026-04-13T17:24:45.531625+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/create-a-multiplier-factory</loc>
<lastmod>2026-04-13T17:24:46.065229+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/make-a-simple-call-counter</loc>
<lastmod>2026-04-13T17:24:44.481508+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/capture-a-default-value-with-a-closure</loc>
<lastmod>2026-04-13T17:24:44.982113+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/generate-personalized-greeters</loc>
<lastmod>2026-04-13T17:24:43.963035+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/create-configurable-power-function</loc>
<lastmod>2026-04-13T17:24:43.467304+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/build-increment-decrement-counter-factory</loc>
<lastmod>2026-04-13T17:24:42.329891+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/make-a-closure-based-validator-factory</loc>
<lastmod>2026-04-13T17:24:42.944079+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/fix-late-binding-in-loop-generated-functions</loc>
<lastmod>2026-04-13T17:24:41.46613+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/cache-last-result-closure</loc>
<lastmod>2026-04-13T17:24:40.837066+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/produce-a-sequence-generator-via-closure</loc>
<lastmod>2026-04-13T17:24:40.159064+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/build-a-resettable-counter-factory</loc>
<lastmod>2026-04-13T17:24:39.526151+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/return-multiple-closure-functions-sharing-one-state</loc>
<lastmod>2026-04-13T17:24:38.732378+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/build-nested-function-factories-with-shared-state</loc>
<lastmod>2026-04-13T17:24:37.712412+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/implement-a-basic-function-decorator</loc>
<lastmod>2026-04-15T18:17:33.353609+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/apply-syntax-to-wrap-a-function</loc>
<lastmod>2026-04-15T18:17:32.86769+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/preserve-function-metadata-with-functools-wraps</loc>
<lastmod>2026-04-15T18:17:32.351868+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/create-a-decorator-that-counts-calls</loc>
<lastmod>2026-04-15T18:17:31.864192+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/build-a-decorator-that-logs-arguments</loc>
<lastmod>2026-04-15T18:17:31.380962+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/write-a-decorator-to-time-function-execution</loc>
<lastmod>2026-04-15T18:17:30.898739+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/stack-multiple-decorators-on-one-function</loc>
<lastmod>2026-04-15T18:17:30.423014+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/create-an-access-control-decorator-checking-roles</loc>
<lastmod>2026-04-15T18:17:29.932053+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/create-a-decorator-that-blocks-negative-inputs</loc>
<lastmod>2026-04-15T18:17:29.40854+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/implement-a-decorator-that-counts-successful-calls</loc>
<lastmod>2026-04-15T18:17:28.933904+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/combine-timing-and-logging-in-one-decorator</loc>
<lastmod>2026-04-15T18:17:28.436299+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/create-a-decorator-that-limits-the-number-of-calls</loc>
<lastmod>2026-04-15T18:17:27.802962+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/build-a-decorator-that-memoizes-pure-functions</loc>
<lastmod>2026-04-15T18:17:26.847972+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/compute-array-sum</loc>
<lastmod>2026-03-25T16:51:56.698588+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/find-the-maximum-and-minimum-in-an-array</loc>
<lastmod>2026-03-25T16:52:07.696279+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/count-occurrences-of-a-value</loc>
<lastmod>2026-03-25T16:52:13.529532+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/reverse-an-array-in-place</loc>
<lastmod>2026-03-25T16:52:24.219626+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/rotate-an-array-right-by-k</loc>
<lastmod>2026-03-25T16:52:30.402731+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/remove-duplicates-from-a-sorted-array</loc>
<lastmod>2026-03-25T16:52:35.547977+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/merge-two-sorted-arrays</loc>
<lastmod>2026-03-25T16:52:44.365384+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/first-index-of-target</loc>
<lastmod>2026-03-25T16:52:51.023932+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/find-two-indices-with-target-sum</loc>
<lastmod>2026-03-25T16:52:57.07408+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/find-longest-subarray-with-sum-at-most-k</loc>
<lastmod>2026-03-25T16:53:12.666141+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/compute-product-of-array-except-self</loc>
<lastmod>2026-03-25T16:53:18.68759+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/move-zeros-using-extra-space</loc>
<lastmod>2026-03-25T16:53:37.692956+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/partition-an-array-by-parity</loc>
<lastmod>2026-03-25T16:53:43.43251+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/find-the-majority-element-in-an-array</loc>
<lastmod>2026-03-25T16:53:49.136156+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/find-a-subarray-with-a-given-sum-positive-numbers</loc>
<lastmod>2026-03-25T16:53:54.161991+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/count-pairs-with-difference-k</loc>
<lastmod>2026-03-25T16:53:58.613087+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/find-the-shortest-subarray-with-sum-at-least-k</loc>
<lastmod>2026-03-25T16:54:20.315776+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/find-the-maximum-product-subarray</loc>
<lastmod>2026-03-25T16:54:28.52005+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/count-subarrays-with-sum-k-by-brute-force</loc>
<lastmod>2026-03-25T16:54:36.102279+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/find-the-next-greater-element-for-each-index</loc>
<lastmod>2026-03-25T16:54:42.632019+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/check-anagrams-with-frequency-arrays</loc>
<lastmod>2026-03-25T17:39:39.51491+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/find-the-first-non-repeating-character</loc>
<lastmod>2026-03-25T17:41:48.064157+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/count-pattern-occurrences-with-a-sliding-window</loc>
<lastmod>2026-03-25T17:42:27.033596+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/max-vowels-substring-k</loc>
<lastmod>2026-03-25T17:44:34.521297+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/count-distinct-chars-window-k</loc>
<lastmod>2026-03-25T17:44:57.760111+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/all-chars-unique</loc>
<lastmod>2026-03-25T17:45:32.386087+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/find-all-start-indices-of-pattern-anagrams</loc>
<lastmod>2026-03-25T17:45:38.897037+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/find-the-minimum-window-substring-containing-a-pattern</loc>
<lastmod>2026-03-25T17:45:47.293738+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/find-the-length-of-the-longest-substring-without-repeating-characters</loc>
<lastmod>2026-03-25T17:46:32.918426+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/find-the-longest-substring-with-at-most-k-distinct-characters</loc>
<lastmod>2026-03-25T17:47:11.210871+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/count-substrings-with-at-most-k-distinct-characters</loc>
<lastmod>2026-03-25T17:47:19.111914+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/check-if-a-string-contains-a-permutation-of-a-pattern</loc>
<lastmod>2026-03-25T17:47:30.875151+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/find-smallest-substring-containing-all-distinct-characters</loc>
<lastmod>2026-03-25T17:48:04.790863+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/find-length-longest-substring-exactly-k-distinct-characters</loc>
<lastmod>2026-03-25T17:48:29.153342+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/find-longest-substring-after-at-most-k-character-replacements</loc>
<lastmod>2026-03-25T17:48:41.103087+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/count-anagrammatic-substring-pairs</loc>
<lastmod>2026-03-25T17:49:35.003078+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/count-substrings-with-exactly-k-distinct-characters</loc>
<lastmod>2026-03-25T17:49:24.803149+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/find-longest-substring-without-repeating-characters-after-one-deletion</loc>
<lastmod>2026-03-25T17:49:52.086222+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/implement-iterative-binary-search</loc>
<lastmod>2026-03-25T18:59:35.31472+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/find-insertion-index-sorted-array</loc>
<lastmod>2026-03-25T18:59:42.138811+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/find-first-occurrence-binary-search</loc>
<lastmod>2026-03-25T18:59:12.185435+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/merge-two-sorted-arrays-as-the-merge-step</loc>
<lastmod>2026-03-25T19:00:23.231549+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/check-if-array-is-sorted</loc>
<lastmod>2026-03-25T19:00:16.981447+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/implement-recursive-binary-search</loc>
<lastmod>2026-03-25T19:00:09.876747+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/search-in-a-rotated-sorted-array</loc>
<lastmod>2026-03-25T19:00:29.769475+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/find-a-peak-in-a-mountain-array-using-binary-search</loc>
<lastmod>2026-03-25T19:00:35.41472+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/implement-merge-sort</loc>
<lastmod>2026-03-25T19:00:41.855181+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/implement-lomuto-quicksort</loc>
<lastmod>2026-03-25T19:01:10.605977+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/merge-k-sorted-arrays</loc>
<lastmod>2026-03-25T19:00:49.822582+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/sort-characters-using-merge-sort</loc>
<lastmod>2026-03-25T19:01:01.68914+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/search-for-a-range-of-a-target-in-a-sorted-array</loc>
<lastmod>2026-03-25T19:02:40.41544+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/count-inversions-using-modified-merge-sort</loc>
<lastmod>2026-03-25T19:02:46.34632+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/find-k-th-smallest-using-quickselect</loc>
<lastmod>2026-03-25T19:02:52.443291+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/find-median-of-two-sorted-arrays</loc>
<lastmod>2026-03-25T19:02:58.859627+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/partition-an-array-around-a-pivot</loc>
<lastmod>2026-03-25T19:03:05.472178+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/sort-colors-in-one-pass</loc>
<lastmod>2026-03-25T19:03:11.694892+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/count-unique-elements</loc>
<lastmod>2026-03-26T14:52:35.619546+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/remove-duplicates-from-a-list</loc>
<lastmod>2026-03-26T14:52:42.495141+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/check-array-contains-duplicates</loc>
<lastmod>2026-03-26T14:52:48.638148+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/find-the-first-unique-character</loc>
<lastmod>2026-03-26T14:53:04.69336+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/compute-the-intersection-of-two-arrays</loc>
<lastmod>2026-03-26T14:52:54.708067+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/find-a-two-sum-pair-using-a-hash-map</loc>
<lastmod>2026-03-26T14:52:59.768066+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/group-anagrams</loc>
<lastmod>2026-03-26T14:53:22.167758+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/find-all-anagrams-in-a-string</loc>
<lastmod>2026-03-26T14:53:10.550284+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/count-subarrays-with-sum-equal-to-k</loc>
<lastmod>2026-03-26T14:53:15.873044+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/find-the-top-k-frequent-elements</loc>
<lastmod>2026-03-26T14:53:26.992288+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/check-if-two-strings-are-isomorphic</loc>
<lastmod>2026-03-26T14:53:32.476714+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/detect-a-happy-number</loc>
<lastmod>2026-03-26T14:53:39.3552+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/find-the-longest-consecutive-sequence</loc>
<lastmod>2026-03-26T14:53:55.780231+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/find-the-longest-subarray-with-equal-0s-and-1s</loc>
<lastmod>2026-03-26T14:53:50.229463+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/find-all-unique-quadruplets-that-sum-to-a-target</loc>
<lastmod>2026-03-26T14:53:44.830534+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/count-pairs-with-the-same-remainder</loc>
<lastmod>2026-03-26T14:54:07.596162+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/find-the-largest-zero-sum-subarray</loc>
<lastmod>2026-03-26T14:54:01.460452+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/detect-duplicates-with-a-frequency-map</loc>
<lastmod>2026-03-26T14:54:13.181898+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/find-a-pair-with-target-sum-in-a-sorted-array</loc>
<lastmod>2026-03-26T16:05:50.183669+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/count-unique-values-in-a-sorted-array</loc>
<lastmod>2026-03-26T16:05:42.138674+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/move-zeros-to-the-end-while-preserving-order</loc>
<lastmod>2026-03-26T16:06:00.509961+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/check-for-a-pair-with-difference-k-in-a-sorted-array</loc>
<lastmod>2026-03-26T16:06:24.371192+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/find-the-longest-substring-without-repeating-characters</loc>
<lastmod>2026-03-26T16:06:07.780007+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/find-the-minimum-size-subarray-with-sum-at-least-target</loc>
<lastmod>2026-03-26T16:06:16.823652+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/find-all-anagrams-of-a-pattern-in-a-string</loc>
<lastmod>2026-03-26T16:10:33.852875+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/find-the-maximum-sum-of-a-subarray-of-size-k</loc>
<lastmod>2026-03-26T16:06:30.81928+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/find-the-longest-subarray-with-at-most-k-distinct-elements</loc>
<lastmod>2026-03-26T16:10:21.027928+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/find-maximum-area-formed-by-two-lines</loc>
<lastmod>2026-03-26T16:10:40.833507+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/sort-array-zeros-ones-twos</loc>
<lastmod>2026-03-26T16:10:51.505763+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/longest-subarray-with-sum-at-most-k</loc>
<lastmod>2026-03-26T16:10:57.371105+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/move-even-numbers-before-odd-numbers-in-place</loc>
<lastmod>2026-03-26T16:12:12.638392+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/minimum-window-substring-expanding-shrinking-window</loc>
<lastmod>2026-03-26T16:11:03.354229+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/solve-trapping-rain-water-using-two-pointers</loc>
<lastmod>2026-03-26T16:11:08.489285+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/find-k-closest-elements-in-a-sorted-array</loc>
<lastmod>2026-03-26T16:13:01.01256+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/find-the-smallest-window-to-sort-an-array</loc>
<lastmod>2026-03-26T16:12:41.541624+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/remove-duplicates-allowing-at-most-two-occurrences</loc>
<lastmod>2026-03-26T16:13:09.128294+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/compute-factorial-recursively</loc>
<lastmod>2026-03-27T16:26:34.900572+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/generate-first-n-fibonacci-numbers-recursively</loc>
<lastmod>2026-03-27T16:28:09.014072+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/find-all-subsets-of-a-set</loc>
<lastmod>2026-03-27T16:28:16.867106+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/generate-all-permutations-of-a-string</loc>
<lastmod>2026-03-27T16:28:23.395938+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/compute-sum-of-an-array-recursively</loc>
<lastmod>2026-03-27T16:28:34.245735+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/count-paths-in-a-grid-recursively</loc>
<lastmod>2026-03-27T16:28:40.217346+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/generate-combinations-of-k-numbers</loc>
<lastmod>2026-03-27T16:28:46.842036+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/restore-ip-addresses-from-a-string</loc>
<lastmod>2026-03-27T16:28:54.781033+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/partition-a-string-into-palindromic-substrings</loc>
<lastmod>2026-03-27T16:29:01.230953+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/generate-well-formed-parentheses</loc>
<lastmod>2026-03-27T16:29:09.618366+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/generate-letter-case-permutations</loc>
<lastmod>2026-03-27T16:29:15.949602+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/find-combination-sum-solutions</loc>
<lastmod>2026-03-27T16:29:21.99227+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/find-all-word-breaks</loc>
<lastmod>2026-03-27T16:29:46.343449+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/find-subsets-with-sum</loc>
<lastmod>2026-03-27T16:29:53.871864+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/generate-unique-permutations-from-list</loc>
<lastmod>2026-03-27T16:30:09.498623+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/find-all-paths-through-a-maze</loc>
<lastmod>2026-03-27T16:30:27.078914+00:00</lastmod>
</url>
<url>
<loc>https://pyschool.ai/lesson/solve-the-n-queens-problem</loc>
<lastmod>2026-03-27T16:30:34.741616+00:00</lastmod>
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<url>
<loc>https://pyschool.ai/lesson/find-multiple-words-in-a-grid</loc>
<lastmod>2026-03-27T16:30:40.87551+00:00</lastmod>
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<url>
<loc>https://pyschool.ai/lesson/find-all-palindrome-partitions-of-a-string-with-pruning</loc>
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<url>
<loc>https://pyschool.ai/lesson/generate-all-valid-expressions-to-reach-a-target</loc>
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<url>
<loc>https://pyschool.ai/lesson/build-a-singly-linked-list</loc>
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<url>
<loc>https://pyschool.ai/lesson/append-and-prepend-nodes</loc>
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<url>
<loc>https://pyschool.ai/lesson/compute-list-length</loc>
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<url>
<loc>https://pyschool.ai/lesson/print-list-elements</loc>
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<url>
<loc>https://pyschool.ai/lesson/find-node-by-value</loc>
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<url>
<loc>https://pyschool.ai/lesson/delete-first-occurrence-of-a-value</loc>
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<url>
<loc>https://pyschool.ai/lesson/reverse-a-list-iteratively</loc>
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<url>
<loc>https://pyschool.ai/lesson/reverse-a-list-recursively</loc>
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<url>
<loc>https://pyschool.ai/lesson/find-the-middle-node</loc>
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<url>
<loc>https://pyschool.ai/lesson/remove-nth-node-from-end</loc>
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<url>
<loc>https://pyschool.ai/lesson/detect-a-cycle-using-floyds-algorithm</loc>
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<url>
<loc>https://pyschool.ai/lesson/remove-a-cycle-if-present</loc>
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<url>
<loc>https://pyschool.ai/lesson/merge-two-sorted-lists</loc>
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<url>
<loc>https://pyschool.ai/lesson/split-list-into-two-halves</loc>
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<url>
<loc>https://pyschool.ai/lesson/check-linked-list-palindrome</loc>
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<url>
<loc>https://pyschool.ai/lesson/rotate-list-right-by-k</loc>
<lastmod>2026-03-27T17:19:48.772217+00:00</lastmod>
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<url>
<loc>https://pyschool.ai/lesson/merge-k-sorted-lists</loc>
<lastmod>2026-03-27T17:29:48.952194+00:00</lastmod>
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<url>
<loc>https://pyschool.ai/lesson/sort-linked-list-using-merge-sort</loc>
<lastmod>2026-03-27T17:31:02.389967+00:00</lastmod>
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<url>
<loc>https://pyschool.ai/lesson/reorder-list-by-alternating-ends</loc>
<lastmod>2026-03-27T17:31:10.418943+00:00</lastmod>
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<url>
<loc>https://pyschool.ai/lesson/add-two-numbers-represented-by-linked-lists</loc>
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<url>
<loc>https://pyschool.ai/lesson/validate-parentheses</loc>
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<url>
<loc>https://pyschool.ai/lesson/reverse-string-using-stack</loc>
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<url>
<loc>https://pyschool.ai/lesson/implement-stack-push-pop-peek</loc>
<lastmod>2026-03-27T18:55:29.415274+00:00</lastmod>
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<url>
<loc>https://pyschool.ai/lesson/implement-a-queue-with-enqueue-and-dequeue</loc>
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<url>
<loc>https://pyschool.ai/lesson/evaluate-a-simple-rpn-expression</loc>
<lastmod>2026-03-27T18:56:11.299825+00:00</lastmod>
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<url>
<loc>https://pyschool.ai/lesson/rotate-a-queue-by-n-steps</loc>
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<url>
<loc>https://pyschool.ai/lesson/find-the-next-greater-element</loc>
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<url>
<loc>https://pyschool.ai/lesson/find-the-next-smaller-element</loc>
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<url>
<loc>https://pyschool.ai/lesson/implement-a-min-stack</loc>
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<url>
<loc>https://pyschool.ai/lesson/find-the-sliding-window-maximum-with-a-deque</loc>
<lastmod>2026-03-27T18:56:58.732674+00:00</lastmod>
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<url>
<loc>https://pyschool.ai/lesson/sort-a-stack-with-one-auxiliary-stack</loc>
<lastmod>2026-03-27T18:57:04.985705+00:00</lastmod>
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<url>
<loc>https://pyschool.ai/lesson/evaluate-an-infix-expression-using-stacks</loc>
<lastmod>2026-03-27T18:56:49.394055+00:00</lastmod>
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<url>
<loc>https://pyschool.ai/lesson/perform-bfs-level-order-traversal-of-a-tree</loc>
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<url>
<loc>https://pyschool.ai/lesson/implement-a-circular-queue</loc>
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<url>
<loc>https://pyschool.ai/lesson/find-the-largest-rectangle-in-a-histogram</loc>
<lastmod>2026-03-27T18:58:19.400099+00:00</lastmod>
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<url>
<loc>https://pyschool.ai/lesson/find-the-next-greater-element-in-a-circular-array</loc>
<lastmod>2026-03-27T18:58:32.689283+00:00</lastmod>
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<url>
<loc>https://pyschool.ai/lesson/find-shortest-path-unweighted-grid-bfs</loc>
<lastmod>2026-03-27T18:58:38.257851+00:00</lastmod>
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<url>
<loc>https://pyschool.ai/lesson/perform-topological-sort-using-kahns-algorithm</loc>
<lastmod>2026-03-27T18:58:44.395712+00:00</lastmod>
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<url>
<loc>https://pyschool.ai/lesson/design-queue-using-two-stacks</loc>
<lastmod>2026-03-27T18:59:00.765938+00:00</lastmod>
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<url>
<loc>https://pyschool.ai/lesson/design-stack-using-two-queues</loc>
<lastmod>2026-03-27T18:59:16.457946+00:00</lastmod>
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<url>
<loc>https://pyschool.ai/lesson/implement-preorder-traversal</loc>
<lastmod>2026-03-29T16:27:14.782545+00:00</lastmod>
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<url>
<loc>https://pyschool.ai/lesson/implement-inorder-traversal</loc>
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<url>
<loc>https://pyschool.ai/lesson/implement-postorder-traversal</loc>
<lastmod>2026-03-29T16:27:13.881706+00:00</lastmod>
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<url>
<loc>https://pyschool.ai/lesson/compute-tree-height</loc>
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<url>
<loc>https://pyschool.ai/lesson/count-leaf-nodes-binary-tree</loc>
<lastmod>2026-03-29T16:27:12.9872+00:00</lastmod>
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<url>
<loc>https://pyschool.ai/lesson/compute-level-order-traversal</loc>
<lastmod>2026-03-29T16:27:12.540921+00:00</lastmod>
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<url>
<loc>https://pyschool.ai/lesson/compute-zigzag-level-order-traversal</loc>
<lastmod>2026-03-29T16:27:12.088824+00:00</lastmod>
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<url>
<loc>https://pyschool.ai/lesson/serialize-a-binary-tree</loc>
<lastmod>2026-03-29T16:27:11.639841+00:00</lastmod>
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<url>
<loc>https://pyschool.ai/lesson/deserialize-a-binary-tree</loc>
<lastmod>2026-03-29T16:27:11.193814+00:00</lastmod>
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<url>
<loc>https://pyschool.ai/lesson/validate-a-bst</loc>
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<url>
<loc>https://pyschool.ai/lesson/insert-into-a-bst</loc>
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<url>
<loc>https://pyschool.ai/lesson/delete-node-from-bst</loc>
<lastmod>2026-03-29T16:27:09.827959+00:00</lastmod>
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<url>
<loc>https://pyschool.ai/lesson/find-the-kth-smallest-element-in-a-bst</loc>
<lastmod>2026-03-29T16:27:09.374511+00:00</lastmod>
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<url>
<loc>https://pyschool.ai/lesson/find-lowest-common-ancestor-binary-tree</loc>
<lastmod>2026-03-29T16:27:08.92281+00:00</lastmod>
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<url>
<loc>https://pyschool.ai/lesson/check-root-to-leaf-path-equals-target-sum</loc>
<lastmod>2026-03-29T16:27:08.463332+00:00</lastmod>
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<url>
<loc>https://pyschool.ai/lesson/construct-tree-from-preorder-and-inorder</loc>
<lastmod>2026-03-29T16:27:08.002582+00:00</lastmod>
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<url>
<loc>https://pyschool.ai/lesson/find-the-inorder-successor-in-a-bst</loc>
<lastmod>2026-03-29T16:27:07.549638+00:00</lastmod>
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<url>
<loc>https://pyschool.ai/lesson/check-if-a-tree-is-symmetric</loc>
<lastmod>2026-03-29T16:27:07.09111+00:00</lastmod>
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<url>
<loc>https://pyschool.ai/lesson/find-all-root-to-leaf-paths-with-a-given-sum</loc>
<lastmod>2026-03-29T16:27:06.634915+00:00</lastmod>
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<url>
<loc>https://pyschool.ai/lesson/recover-a-swapped-bst</loc>
<lastmod>2026-03-29T16:27:06.173395+00:00</lastmod>
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<url>
<loc>https://pyschool.ai/lesson/construct-a-tree-from-inorder-and-postorder</loc>
<lastmod>2026-03-29T16:27:05.706506+00:00</lastmod>
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<url>
<loc>https://pyschool.ai/lesson/find-the-maximum-path-sum-in-a-binary-tree</loc>
<lastmod>2026-03-29T16:27:05.25545+00:00</lastmod>
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<url>
<loc>https://pyschool.ai/lesson/compute-the-diameter-of-a-binary-tree</loc>
<lastmod>2026-03-29T16:27:04.805734+00:00</lastmod>
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<url>
<loc>https://pyschool.ai/lesson/count-nodes-in-a-complete-binary-tree</loc>
<lastmod>2026-03-29T16:27:04.333886+00:00</lastmod>
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<url>
<loc>https://pyschool.ai/lesson/populate-next-right-pointers</loc>
<lastmod>2026-03-29T16:27:03.872571+00:00</lastmod>
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<url>
<loc>https://pyschool.ai/lesson/flatten-a-binary-tree-to-a-linked-list</loc>
<lastmod>2026-03-29T16:27:03.408646+00:00</lastmod>
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<url>
<loc>https://pyschool.ai/lesson/check-if-tree-is-height-balanced</loc>
<lastmod>2026-03-29T16:27:02.94368+00:00</lastmod>
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<url>
<loc>https://pyschool.ai/lesson/convert-a-bst-to-a-sorted-doubly-linked-list</loc>
<lastmod>2026-03-29T16:27:02.402512+00:00</lastmod>
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<url>
<loc>https://pyschool.ai/lesson/compute-fibonacci-with-memoization</loc>
<lastmod>2026-03-29T17:40:41.889057+00:00</lastmod>
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<url>
<loc>https://pyschool.ai/lesson/count-ways-to-climb-stairs</loc>
<lastmod>2026-03-29T17:40:41.397681+00:00</lastmod>
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<url>
<loc>https://pyschool.ai/lesson/min-cost-climbing-stairs</loc>
<lastmod>2026-03-29T17:40:40.843522+00:00</lastmod>
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<url>
<loc>https://pyschool.ai/lesson/count-unique-paths-grid</loc>
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<loc>https://pyschool.ai/lesson/count-ways-to-make-change</loc>
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<loc>https://pyschool.ai/lesson/decide-if-a-subset-sum-is-possible</loc>
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<loc>https://pyschool.ai/lesson/find-the-longest-common-subsequence-length</loc>
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<loc>https://pyschool.ai/lesson/compute-edit-distance-basic</loc>
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<loc>https://pyschool.ai/lesson/find-maximum-subarray-sum</loc>
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<loc>https://pyschool.ai/lesson/check-if-an-array-can-be-partitioned-into-equal-subset-sums</loc>
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<loc>https://pyschool.ai/lesson/find-maximum-profit-from-rod-cutting</loc>
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<loc>https://pyschool.ai/lesson/count-decode-ways</loc>
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<loc>https://pyschool.ai/lesson/solve-house-robber</loc>
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<loc>https://pyschool.ai/lesson/count-unique-paths-with-obstacles</loc>
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<loc>https://pyschool.ai/lesson/find-the-minimum-path-sum-in-a-grid</loc>
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<loc>https://pyschool.ai/lesson/solve-0-1-knapsack-for-maximum-value</loc>
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<url>
<loc>https://pyschool.ai/lesson/coin-change-min-coins</loc>
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<url>
<loc>https://pyschool.ai/lesson/longest-increasing-subsequence</loc>
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<url>
<loc>https://pyschool.ai/lesson/find-the-longest-palindromic-subsequence</loc>
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<url>
<loc>https://pyschool.ai/lesson/solve-word-break-with-reconstruction</loc>
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<url>
<loc>https://pyschool.ai/lesson/find-the-minimum-palindrome-partitioning-cuts</loc>
<lastmod>2026-03-29T17:40:30.719054+00:00</lastmod>
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<url>
<loc>https://pyschool.ai/lesson/compute-matrix-chain-multiplication-cost</loc>
<lastmod>2026-03-29T17:40:30.064025+00:00</lastmod>
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<url>
<loc>https://pyschool.ai/lesson/find-the-maximum-coins-from-burst-balloons</loc>
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<url>
<loc>https://pyschool.ai/lesson/count-distinct-subsequences</loc>
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