Compute weighted sum of digits (position × digit) Dry Run in C

Compute weighted sum of digits (position × digit) 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.

Compute weighted sum of digits (position × digit) Program Code

#include <stdio.h>
int main() {
    int num, weightedSum = 0, position = 1, temp;
    printf("Enter a number: ");
    scanf("%d", &num);
    
    for(temp = num; temp != 0; temp /= 10) {
        int digit = temp % 10;
        weightedSum += position * digit;
        position++;
    }
    
    printf("Weighted sum (position × digit) = %d\n", weightedSum);
    return 0;
}

View the complete For programs page.