What will be the output of the following C++ code?
int x = 5;
int a = x++;
int b = ++x;
cout << a << " " << b << " " << x;
Options
-
A.
5 6 6
-
B.
5 7 7
-
C.
6 7 7
-
D.
More than one of the above
-
E.
None of the above
Correct Answer (Detailed Explanation is Below)
B.
5 7 7
Detailed Explanation
Answer: (B) 5 7 7
x++ is the post-increment operator. It first uses the current value and then increments x.
Initially x = 5, so a = x++ makes a = 5 and then x = 6.
Next, ++x is pre-increment. It increments x first, making it 7, and then assigns that value to b.
Therefore, a = 5, b = 7, and x = 7.
