C++ | References | Question 6
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;
}
|
(A)
x = 20
ref = 30
(B)
x = 20
ref = 20
(C)
x = 10
ref = 30
(D)
x = 30
ref = 30
Answer: (A)
Explanation: ref is an alias of x, so if we change either of them, we can see the change in other as well.
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Last Updated :
28 Jun, 2021
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