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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 2

Write a function that returns a greeting

Easy

≈ 8 minute session

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Summary

Create a greeting function that returns a formatted hello message.

Problem statement

Write a function called greet that accepts a single string parameter name and returns the greeting string in the exact format: "Hello, {name}!". If name is an empty string, still return "Hello, !". Do not print; return the string.

Task

Implement greet(name) to return a friendly greeting string using the provided name.

Examples

Greet Alice

Input

greet("Alice")

Output

Hello, Alice!

Explanation

The function inserts the name into the greeting template.

Input format

Call the function as greet(name) where name is a string.

Output format

Return a string formatted as: Hello, {name}!

Constraints

The returned string must match the exact format, including punctuation and spacing.

Samples

Sample input 0

greet("Bob")

Sample output 0

Hello, Bob!

Explanation 0

Basic name greeting.

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