Submission

Status:

[P][-][-][P][-][P][P][P][-S][P]

Score: 60

User: Mii

Problemset: กองส้ม

Language: cpp

Time: 0.002 second

Submitted On: 2024-11-24 21:57:54

#include <iostream>
using namespace std;
int main() {
    int a,b;
    cin>>a;
    cin>>b;
    if(b==0){
        cout<<a;
        return 0;
    }
    for(int i=1;i<=a;i++){
        if(b<=(i*(i+1)*(2*i+1)/6)){
            cout<<a-i+1;
            return 0;
        }
    }
    return 0;
}