More Problems

• Write a program to check if a string is a valid UTF-8 encoded string.
• Write a program to find the longest common prefix between two strings using a function.
• Write a program to implement a basic sorting algorithm (e.g., selection sort).
• Write a program to check if a number is a perfect square using binary search.
• Write a program to find the total number of even digits in a number.
• Write a program to implement a simple file copy application.
• Write a program to check if a string contains only digits.
• Write a program to find the total number of vowels in a string using a function.