Output of following C++ program? #include<iostream> using namespace std; int main() { int x = 10; int& ref = x; ref = 20; cout << "x = " << x << endl ; x = 30; cout << "ref = " << ref << endl; return 0; }

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Question:
Output of following C++ program?
#include<iostream>
using namespace std;
int main()
{
int x = 10;
int& ref = x;
ref = 20;
cout << "x = " << x << endl ;
x = 30;
cout << "ref = " << ref << endl;
return 0;
}

1.x = 20; ref = 30

2.x = 20; ref = 20

3.x = 10; ref = 30

4.x = 30; ref = 30

Posted Date:-2022-07-04 03:07:24

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