More Problems

• Write a program to find the longest common prefix among an array of strings.
• Write a program to implement a basic online recipe management system.
• Write a program to check if a string can be rearranged to form a valid palindrome.
• Write a program to find the first character that appears more than once in a string.
• Write a program to implement a simple online booking system for hotel reservations.
• Write a program to check if a binary tree is symmetric.
• Write a program to implement a simple graph data structure using an adjacency matrix.
• Write a program to find the longest path in a weighted graph using dynamic programming.