Problems on Python Functions

Introduction

Python functions are blocks of reusable code designed to perform specific tasks. They are fundamental in Python programming and play a crucial role in breaking down complex tasks into smaller, manageable pieces. Functions enhance code modularity and reusability.

In Python, functions are defined using the "def" keyword, followed by a name and parentheses containing optional parameters. A function can accept input (arguments) and return output using the "return" statement.

Easy

• Program to define a simple function that prints "Hello, World!"
• Program to create a function that calculates the square of a number.
• Program to create a function that checks if a number is even or odd.
• Program to create a function that returns the factorial of a number.
• Program to create a function that reverses a string.

Medium

• Program to create a function that calculates the Fibonacci sequence.
• Program to create a function that checks if a string is a palindrome.
• Program to create a function that finds the greatest common divisor (GCD) of two numbers.
• Program to create a function that checks if a number is a prime.
• Program to create a function that calculates the area of various geometric shapes.

Hard

• Program to create a recursive function for calculating the factorial.
• Program to create a function that solves the Towers of Hanoi puzzle.
• Program to implement a recursive algorithm to find all permutations of a string.
• Program to create a function that generates all possible combinations of a list.
• Program to implement a custom sorting algorithm using a function.