Sum of Digits of a Five Digit Number in C Full Code Solution

One of the most important skills in C programming is understanding how to work with numbers and manipulate digits. In this tutorial, TruongDevs presents a complete guide to solving a classic beginner exercise in C language. The problem is simple but essential. You are given a five digit integer, and you are required to calculate the sum of its digits. This problem will help you get comfortable with concepts like the modulo operator, integer division, loops, and basic I O operations using scanf and printf. Many students learning C often encounter this type of exercise early in their programming journey. This is because understanding how to extract digits using the modulo operator and divide by 10 is a foundational logic technique used in many algorithm problems such as reversing a number, checking for palindromes, or digit-based validations. Mastering this problem is a great first step toward stronger problem solving skills in C. Problem Description Given a five digit integer n where n ra…