Submission

[PPPPPPPPP]

Score: 100

User: Newtonabc

Problemset: ขนมของเซ้น143 (v.ง่าย)

Language: cpp

Time: 0.002 second

Submitted On: 2024-09-27 15:05:39

#include<bits/stdc++.h>
using namespace std;
long long ab(long long x){
	if(x<0) x=-x;
	return x;
}
int main(){
	int n;
	long long mn=LLONG_MAX;
	cin>>n;
	for(long long i=1;i<=n;i++) mn=min(mn,ab(((1LL+n)*n/2LL-(1LL+i)*i/2LL)-(1LL+i)*i/2LL));
	cout<<mn;
}