Submission

Status:

[P][P][P][P][P][P][P][P][PP][P]

Score: 100

User: TonnamSora

Problemset: กองส้ม

Language: cpp

Time: 0.003 second

Submitted On: 2025-04-18 20:29:50

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

int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    char c[1];
    int L, N;
    int cnt = 0, check = 0;
    cin >> L >> N;
    int all = L * (L + 1) * ((2 * L) + 1) / 6;
    int sum = all - N;
    for (int i = L; check < sum; i--)
    {
        check = check + (i * i);
        cnt++;
    }
    cout << cnt;
}