More Problems

• Write a program to check if a number is a palindromic number using recursion.
• Write a program to find the sum of the first n triangular numbers.
• Write a program to implement a simple file backup system.
• Write a program to check if two strings are isomorphic.
• Write a program to find the longest palindromic prefix in a string.
• Write a program to implement a basic online language learning platform.
• Write a program to check if a string is a valid IP address using regex.
• Write a program to find the first non-repeating character in a string using a function.