C Program to swap two variables using a third variable

#include<stdio.h>

int main()

{

    int a,b,c;

    printf("Enter the first number\n");

    scanf("%d",&a);

    printf("Enter the second number\n");

    scanf("%d",&b);

    printf("\n before swapping a=%d b=%d\n",a,b);

    c=a;

    a=b;

    b=c;

    printf("\n after swapping a=%d b=%d\n",a,b);

}

Output: