Write a C program to swap two numbers

Program :

#include <stdio.h>

#include <conio.h>

int main(){

    int a, b, c;

    printf("Enter two numbers \n");

    scanf("%d %d", &a, &b);

    printf("\na:%d\n b:%d\n",a,b);   

    c = a;

    a = b;

    b = c;

    printf("\nAfter Swap\n");

    printf("\na:%d\n b:%d\n",a,b);

    getch();

    return 0;

}

Output:

Enter two numbers

6 7

a:6

 b:7

After Swap

a:7

 b:6