More Problems

• Write a program to calculate the sum of all natural numbers up to n.
• Write a program to check if a string starts with a vowel.
• Write a program to find the LCM of three numbers.
• Write a program to convert a decimal number to hexadecimal.
• Write a program to implement a simple quiz application.
• Write a program to count the number of digits in a given number.
• Write a program to find the sum of digits at odd positions in a number.
• Write a program to check if a number is a negative number.