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01. Define a function that adds two numbersE02. Write a function that returns a greetingE03. Implement a function to find the maximum of threeE04. Create a function to join words with a separatorE05. Write a function that returns the length of a sequenceE06. Implement a function with a default argumentE07. Create a function that accepts any number of argsE08. Write a function that handles keyword argumentsE09. Implement a function that returns multiple valuesE10. Write a function that modifies a passed listE11. Define a function that reads a global variableE12. Write a function with a simple docstringE13. Write a function that demonstrates nonlocal usageM14. Create a function factory returning customized functionsM15. Implement argument unpacking with *args and **kwargsM16. Write a function that avoids mutable default argsM17. Create a function with keyword-only parametersM18. Implement a simple recursive function with a base caseM19. Implement a decorator that logs function callsH20. Write a decorator that memoizes function resultsH

Problem No 14

Create a function factory returning customized functions

Medium

≈ 15 minute session

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Summary

Build a function factory that returns specialized functions capturing parameters from their creation scope.

Problem statement

Write a function make_power(exponent) that returns a new function. The returned function should accept a single numeric argument x and return x ** exponent. This demonstrates how a factory function captures and reuses configuration (exponent) via closures.

Task

Implement make_power(exponent) that returns a function which raises its input to the given exponent.

Examples

Square and cube factories

Input

make_power(2)(3)

Output

9

Explanation

make_power(2) returns a function that squares its input. Calling it with 3 returns 9.

Zero exponent

Input

make_power(0)(5)

Output

1

Explanation

Any non-zero number to the power 0 is 1.

Input format

Call make_power with a numeric exponent and immediately call the returned function with a numeric value, e.g., make_power(3)(2).

Output format

Return the numeric result of raising the input to the stored exponent (as Python would display it).

Constraints

- exponent may be any integer (positive, zero, negative). - The returned function should work with integers and floats. - Use closures to capture the exponent value.

Samples

Sample input 0

make_power(-1)(2)

Sample output 0

0.5

Explanation 0

A negative exponent inverts the base (2 ** -1 == 0.5).

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