More Problems

• Write a program to check if a binary tree is symmetric.
• Write a program to find the total number of unique paths in a grid from the top-left to the bottom-right corner.
• Write a program to implement the shell sort algorithm.
• Write a program to solve the "Maximum Flow Problem" using the Edmonds-Karp algorithm.
• Write a program to check if a number can be expressed as a sum of two prime numbers.
• Write a program to find the sum of all the even Fibonacci numbers up to a limit.
• Write a program to implement a basic social network with friend connections.
• Write a program to check if a string is a valid HTML tag.