29. Reset Fault Buffer

#include <iostream>
using namespace std;

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

    // Write your safe delete + pointer reset logic here
    int *ptr = new int;
    *ptr = code ;
    cout << *ptr;
    delete ptr;
    ptr = nullptr;
    if(ptr == nullptr)
    {
        cout << " OK" ;
    }
    else
    {
        cout << " NOT_OK";

    }

    return 0;
}