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 << " "; // print stored code
    delete p; 
    p = nullptr; 
    if (p == nullptr) {
        cout << "OK"; 
    } else {
        cout << "NOT_OK";
    }

    return 0;
}

Solving Approach