More Problems

• Write a program to implement a simple email subscription system.
• Write a program to check if a number is a square number using a function.
• Write a program to find the largest prime number less than a given number.
• Write a program to calculate the area of a parallelogram using a function.
• Write a program to check if two strings are anagrams using character counting.
• Write a program to find the total number of words in a string.
• Write a program to implement a simple game of Rock, Paper, Scissors.
• Write a program to check if a string is a valid username.