C++ 프로그램: 한 상자를 다른 상자 안에 넣은 후 표시되는 상자 수 찾기

Input : arr[] = { 1, 3, 4, 5 }
Output : 3
Put a box of size 1 in the box of size 3.

Input : arr[] = { 4, 2, 1, 8 }
Output : 1

#include <bits/stdc++.h>
using namespace std;
int main(){
    int arr[] = { 1, 2, 3, 4, 5, 6 }; // given array containing the size of our boxes
    int n = sizeof(arr) / sizeof(arr[0]); // size of our array
    queue<int> q;
    sort(arr, arr + n); // sorting our array
    q.push(arr[0]); // pushing the smallest element in the front
    for (int i = 1; i < n; i++) { // traversing the array
        int curr = q.front(); // current element
        if (arr[i] >= 2 * curr) // if the size of the current box is greater than twice
                               // of the box in front so we pop the front
            q.pop();

        q.push(arr[i]); // pushing the current element in the queue
    }
    cout << q.size() << "\n"; // our answer
    return 0;
}

3