Submission

Score: 100

User: 666whynot

Problemset: กองส้ม

Language: cpp

Time: 0.002 second

Submitted On: 2025-05-31 11:51:07

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

int main(){
    ios::sync_with_stdio(0);cin.tie(0);
    int L,N;
    cin >> L >> N;
    int sum = 0;
    for(int i=1;i<=L;i++){
        sum += i*i;
        if(sum == N){
            cout << L-i;
            return 0;
        } else if(sum > N){
            cout << L-i+1;
            return 0;
        }
    }
}