What is the output of the following code?
#include <iostream>
using namespace std;
int main()
{
int a = 20, b = 100;
int &n = a;
n = a++;
n = &b;
cout << a << "," << n << endl;
system("pause");
}
#include <iostream>
using namespace std;
int main()
{
int a = 20, b = 100;
int &n = a;
n = a++;
n = &b;
cout << a << "," << n << endl;
system("pause");
}
21,21
20,21
21,22
compile error
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