Swap two numbers without temporary variable using + and - Dry Run in C

Swap two numbers without temporary variable using + and - is an interactive C dry run visualizer from the Input Output 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.

Swap two numbers without temporary variable using + and - Program Code

#include <stdio.h>
int main() {
    int a, b;
    printf("Enter two numbers: ");
    scanf("%d %d", &a, &b);

    printf("Before swap: a=%d, b=%d\n", a, b);
    a = a + b;
    b = a - b;
    a = a - b;

    printf("After swap: a=%d, b=%d", a, b);
    return 0;
}

View the complete Input Output programs page.