HCF using while loop (Euclidean algorithm) Dry Run in C

HCF using while loop (Euclidean algorithm) is an interactive C dry run visualizer from the While 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.

HCF using while loop (Euclidean algorithm) Program Code

#include <stdio.h>
int main() {
    int a, b;
    
    printf("Enter two numbers: ");
    scanf("%d %d", &a, &b);
    
    while(a != b) {
        if(a > b)
            a = a - b;
        else
            b = b - a;
    }
    
    printf("HCF = %d\n", a);
    return 0;
}

View the complete While programs page.