More Problems

• Write a program to check if a number is a Fibonacci number using matrix exponentiation.
• Write a program to find the first unique character in a string using a frequency map.
• Write a program to implement a simple online restaurant menu with user feedback.
• Write a program to check if a number is an automorphic number using a function.
• Write a program to find the longest sequence of digits in a string.
• Write a program to implement the Merge Sort algorithm iteratively.
• Write a program to check if two strings are equal using a character-by-character comparison.
• Write a program to find the maximum sum of elements in a subarray using Kadanes algorithm.