Submission

[PPPPPPPPP]

Score: 100

User: Nathlol2

Problemset: ขนมของเซ้น143 (v.ง่าย)

Language: cpp

Time: 0.003 second

Submitted On: 2025-01-10 11:26:26

#include <bits/stdc++.h>
#define ll long long
using namespace std;
ll sum(ll n){
    return (n * (n + 1)) / 2;
}

int main() {
    ios::sync_with_stdio(false);
    cin.tie(NULL);
    
    int n;
    cin >> n;
    ll ans = INT_MAX;
    for(int i = 1;i<=n;i++){
        ans = min(ans, abs(sum(i) - (sum(n) - sum(i))));
    }
    cout << ans;
}