pc-ip-07.c

Metadata

• Author — Amit Dutta (amitdutta4255@gmail.com)
• Last updated — 05 Jan 2026
• License — MIT

Problem Statement

Problem Statement

Question 7: Write a program to swap two numbers using pointers using user-defined function.

Source Code

View on GitHub Download Raw

Printing the code

To print this file, open it on GitHub and click Raw before printing, or use the Download Raw button above and print directly from that page.

#include <stdio.h>

void swap(int *, int *);

int main()
{
    int a, b;
    printf("Enter two number: ");
    scanf("%d %d", &a, &b);
    printf("\nBefore Swap: ");
    printf("\nA = %d, Loc: %p", a, &a);
    printf("\nB = %d, Loc: %p", b, &b);
    swap(&a, &b);
    printf("\nAfter Swap: ");
    printf("\nA = %d, Loc: %p", a, &a);
    printf("\nB = %d, Loc: %p", b, &b);
    return 0;
}

void swap(int *a, int *b)
{
    int temp = *a;
    *a = *b;
    *b = temp;
}