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(code);
    cout << *p << " ";

    delete p;
    p = nullptr;

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

    return 0;
}

Solving Approach