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(code);
    cout<<*ptr<<" ";
    delete ptr;
    ptr=nullptr;
    if(ptr==nullptr){
        cout<<"OK";

    }else cout<<"NOT_OK";

    return 0;
}