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What is the output of the following code?
```cpp
#include <iostream>
using namespace std;
int getValue() {
    static int num = 0;
    num++;
    return num;
}
int main() {
    cout << getValue() << endl;
    cout << getValue() << endl;
    cout << getValue() << endl;
    return 0;
}
```
  • a)
    1, 2, 3
  • b)
    1, 1, 1
  • c)
    1, 1, 2
  • d)
    Compilation error
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
What is the output of the following code?```cpp#include <iostream&g...
The function 'getValue' has a static local variable 'num' that is initialized to 0. Each time the function is called, 'num' is incremented by 1 and returned. In the main function, 'getValue' is called three times, resulting in the sequence 1, 2, 3 being printed.
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Community Answer
What is the output of the following code?```cpp#include <iostream&g...
-

Explanation:
- getValue() Function:
- The getValue() function is defined with a static variable 'num' initialized to 0.
- Inside the function, the value of 'num' is incremented by 1 each time the function is called, and the updated value is returned.
- Main Function:
- In the main function, the getValue() function is called three times consecutively.
- The first time it is called, it returns 1 as 'num' is initially 0 and then incremented to 1.
- The second time it is called, 'num' is already 1 (from the previous call) and then incremented to 2, so it returns 2.
- The third time it is called, 'num' is 2 (from the previous call) and then incremented to 3, so it returns 3.
Therefore, the output of the code will be:
1
1
2
This is because the static variable 'num' retains its value between function calls and is incremented each time getValue() is called.
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What is the output of the following code?```cpp#include <iostream>using namespace std;int getValue() { static int num = 0; num++; return num;}int main() { cout << getValue() << endl; cout << getValue() << endl; cout << getValue() << endl; return 0;}```a)1, 2, 3b)1, 1, 1c)1, 1, 2d)Compilation errorCorrect answer is option 'C'. Can you explain this answer?
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