More Problems

• Write a program to find the first unique character in a string using a frequency count.
• Write a program to implement the depth-first search (DFS) algorithm on a graph.
• Write a program to solve the "Partition Equal Subset Sum Problem" using dynamic programming.
• Write a program to implement the A* search algorithm for pathfinding in a grid.
• Write a program to find the longest palindromic substring using Manachers algorithm.
• Write a program to check if a binary tree is a balanced binary search tree.
• Write a program to find the total number of islands in a grid using depth-first search.
• Write a program to implement a simple online voting system with results tracking.