Swap

#include <stdio.h>

void ft_swap(int *a, int *b){
int tmp;
int tmp2;
tmp = *a;
tmp2 = *b;

tmp = tmp + tmp2;
tmp2 = tmp - tmp2;
tmp = tmp - tmp2;
}





int main(){
int a1 = 19;
int b1 = 20;
int *a = &a1;
int *b = &b1;

ft_swap(int *a, int *b);


printf("%d", tmp);
printf("%d", tmp2);

}