More Problems

• Write a program to check if a number is a perfect number using its divisors.
• Write a program to implement a simple online voting system.
• Write a program to find the maximum digit in a number using recursion.
• Write a program to check if a string is a valid MAC address.
• Write a program to implement a simple contact book application.
• Write a program to find the total number of consonants in a string.
• Write a program to check if a number is a Fibonacci number using dynamic programming.
• Write a program to calculate the surface area of a cylinder given its radius and height.