More Problems

• Write a program to implement a simple console-based file manager.
• Write a program to check if a string is a valid hexadecimal number.
• Write a program to find the total number of unique words in a text file.
• Write a program to implement a basic task scheduler that executes tasks at specified intervals.
• Write a program to check if a number is a happy number using cycle detection.
• Write a program to find the longest sequence of repeating characters in a string.
• Write a program to implement the Sieve of Eratosthenes for finding prime numbers.
• Write a program to check if a binary tree is a valid binary search tree using in-order traversal.