More Problems

• Write a program to check if a string is a valid time in the 24-hour format.
• Write a program to find the sum of all unique elements in an array.
• Write a program to implement a basic file search application.
• Write a program to check if two numbers are co-prime using the GCD method.
• Write a program to find the longest palindrome substring in a string using expansion.
• Write a program to implement a simple text-based RPG with character stats.
• Write a program to check if a string is a valid ISBN number.
• Write a program to find the maximum sum of two distinct numbers in an array.