0.1 Swap two number using function

#include<stdio.h>
void Swap(int *p_a , int *p_b){
    int a = *p_a;
    *p_a = *p_b;
    *p_b = a;
}
int main()
{
    int a=5,b=6;
    printf("before a = %d b = %d\n",a,b);
    Swap(&a,&b);
    printf("after a = %d b = %d",a,b);
    return 0;
}
/*
Ouput
before a 5 b 6
before a 6 b 5
*/