29. Reset Fault Buffer

#include <iostream>
using namespace std;

int main() {
    int code;
    cin >> code;

    // Write your safe delete + pointer reset logic here
    int * int_ptr = new int(code);
    std::cout << *int_ptr;
    delete int_ptr;
    int_ptr = nullptr;

    if (int_ptr == nullptr)
    {
        std::cout << " OK";
    }
    else
    {
        std::cout << " NOT_OK";
    }
    return 0;
}