C++ quiz. What will be the value of the k variable after the

What will be the value of the k variable after the function f is called from the main:


void f(int &a)
{
    a++;
}
int main()
{
    int k = 0;
    f(k);
}

Explanation

Argument in f function if passed by reference, that's why value of k is changed. More information: Passing parameters by references in C++

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