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(code);
    cout<<*p<<" ";
    delete p;
    p=nullptr;
    p ? printf("NOT_OK") : printf("OK");
    return 0;
}