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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