29. Reset Fault Buffer

#include <iostream>
using namespace std;

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

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

    delete p;
    p = nullptr;

    if(p!=nullptr)
    {
        cout <<" "<< "NOT_OK";
    }
    else
    {
        cout <<" "<< "OK";
    }

    return 0;
}