Find sum of digits of a number Dry Run in C

Find sum of digits of a number is an interactive C dry run visualizer from the For programs section. Study the source code, then use the execution controls to follow each step, variable update, highlighted line, and console output.

This page provides a browser-based dry run with source-code highlighting, auto-scroll, voice narration controls, and execution output for learning the program step by step.

Find sum of digits of a number Program Code

#include <stdio.h>
int main() {
    int num, sum = 0, temp;
    printf("Enter a number: ");
    scanf("%d", &num);
    
    for(temp = num; temp != 0; temp /= 10) {
        sum += temp % 10;
    }
    
    printf("Sum of digits = %d\n", sum);
    return 0;
}

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