Swap Two Values

#include <iostream>
using namespace std;

// your code here: define swapPtr(int* a, int* b)
void swapPtr(int* a, int* b) {
    int temp = *a;  
    *a = *b;         
    *b = temp;       
}

// Swap using references
void swapRef(int& a, int& b) {
    int temp = a;   
    a = b;          
    b = temp;        
}
// your code here: define swapRef(int& a, int& b)

int main() {
   int x, y;
   cin >> x >> y;
   int a = x, b = y;
   swapPtr(&a, &b);
   cout << "After swapPtr: a=" << a << " b=" << b << "\n";
   int c = x, d = y;
   swapRef(c, d);
   cout << "After swapRef: a=" << c << " b=" << d;
   return 0;
}