Q55
What will be the output of the following C++ code? #include using namespace std; int main() int x = 10; int& ref = x; ref = 20; cout << x << endl ; x = 30; cout << ref << endl; return 0;
A.
20
30
Answer30
B.
10
10
10
C.
10
20
20
D.
10
30
30
Answer: Option A
Solution
Answer: Option A
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