GFG SWAP TWO NUMBERS -

#include <bits/stdc++.h>

using namespace std;
 
int main() {
    int x = 10, y = 5;
    x = x + y; // x now becomes 15
    y = x - y; // y becomes 10
    x = x - y; // x becomes 5
    cout << "After Swapping: x =" << x << ", y=" << y;
}