More Problems

• Write a program to check if a string is a valid email address using regex.
• Write a program to implement a basic scheduling application that allows users to add events.
• Write a program to find the longest common prefix among an array of strings.
• Write a program to check if a given string is a valid IPv4 address.
• Write a program to find the maximum sum of a subarray using the divide and conquer approach.
• Write a program to implement a simple text-based RPG with battles.
• Write a program to find the greatest common divisor (GCD) using the Euclidean algorithm.
• Write a program to check if a string contains balanced parentheses using a stack.