More Problems

• Write a program to check if a string can be rearranged to form a palindrome using a character count.
• Write a program to find the longest palindromic substring in a string using Manachers algorithm.
• Write a program to implement a simple online file sharing service.
• Write a program to check if a number can be expressed as the sum of four squares.
• Write a program to find the longest common subsequence in multiple sequences.
• Write a program to implement a basic text-based game with quests and character stats.
• Write a program to check if a string contains balanced parentheses using a stack.
• Write a program to find the shortest path in a 2D grid using Dijkstra’s algorithm.