Find difference between sum of digits at even and odd positions Dry Run in C

Find difference between sum of digits at even and odd positions 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.

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Find difference between sum of digits at even and odd positions Program Code

#include <stdio.h>
int main() {
    int num, evenSum = 0, oddSum = 0, position = 1, temp;
    printf("Enter a number: ");
    scanf("%d", &num);
    
    for(temp = num; temp != 0; temp /= 10) {
        int digit = temp % 10;
        if(position % 2 == 0) {
            evenSum += digit;   // even position (from right)
        } else {
            oddSum += digit;    // odd position (from right)
        }
        position++;
    }
    
    printf("Sum at odd positions (from right): %d\n", oddSum);
    printf("Sum at even positions (from right): %d\n", evenSum);
    printf("Difference (odd - even): %d\n", oddSum - evenSum);
    return 0;
}

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