More Problems

• Create a program to find the sum of all even numbers in a given range.
• Write a function to count the number of prime numbers less than a given number.
• Implement a program to calculate the cube of a number.
• Create a function to find the nth Fibonacci number using an iterative approach.
• Write a program to determine if a number is a perfect cube.
• Implement a function to check if a string is a valid email address.
• Create a program to print the first n perfect squares.
• Write a program to calculate the area of a rectangle given its length and width.