Help me in solving ARRY1V2 problem

help
,
1

My issue

My code

#include <bits/stdc++.h>
using namespace std;

int main() {
___ num[ _ ] = {1, 2, 3, _ ,5 };
  cout << "Done";

  return 0;
}

Learning course: Learn C++
Problem Link: CodeChef: Practical coding for everyone