More Problems

• Write a program to check if two strings can be made equal with limited character swaps.
• Write a program to find the first non-repeating character in a string using a hash map.
• Write a program to implement a simple online course management system.
• Write a program to check if a number is a palindromic number using recursion.
• Write a program to find the maximum sum of a subarray using divide and conquer.
• Write a program to implement a simple spell checker using a dictionary of words.
• Write a program to check if a binary tree is height-balanced.
• Write a program to find the longest palindromic prefix in a string.