More Problems

• Write a program to check if a number is a happy number using a cycle detection algorithm.
• Write a program to find the shortest path between two nodes in a graph using the Floyd-Warshall algorithm.
• Write a program to implement a simple online shopping cart with checkout functionality.
• Write a program to check if a string is a valid phone number using regex.
• Write a program to find the sum of the first n prime numbers.
• Write a program to implement a basic file compression algorithm using Huffman coding.
• Write a program to check if a number can be expressed as the sum of two squares.
• Write a program to find the maximum sum of a non-contiguous subarray using dynamic programming.