Exchange the value a=19 and b=80.

Question

Please help me

Answer 1

#include <iostream>
#include <tuple>
using namespace std;

int main() {
int a = 10, b = 20;
tie(a, b) = make_tuple(b, a);
cout<< "Swapping values : a = " << a <<endl
<< "b = " << b;

return 0;
}

Answer 2

int x = b;
b = a;
a = x ;