C++ quiz. What will be printed out as a result of program ex

What will be printed out as a result of program execution?

#include <iostream>

using namespace std;

void init(int *x)
{
    x = new int;
    *x = 50;
}

int main()
{
    int v = 100;
    init(&v);
    cout << v;

    return 0;
}

50
100
Code will not compile

Explanation

Since the pointer is passed to the void init (int *x) function by value, it points to another memory location where number 50 is written after its change in the line x = new int. As a result, the memory allocated by the init function leaks and 100 is displayed on the screen.