Submission #1092276


Source Code Expand

#include <iostream>
#include <string>
#include <algorithm>
#include <vector>
#include <queue>
#define MOD 1000000007
#define int long long
#define INF 1e+18
using namespace std;

signed main(){
	int n,a[100000],sum = 0;
	cin >> n;
	for(int i = 0;i < n;i++){
		cin >> a[i];
		sum += a[i];
	}
	if(sum % (n * (n + 1) / 2)){
		cout << "NO" << endl;
		return 0;
	}
	sum /= (n * (n + 1) / 2);
	int d = a[1] - a[0];
	for(int i = 1;i < n - 1;i++){
		if(a[i + 1] - a[i] != d && a[i + 1] - a[i] != d - n){
			cout << "NO" << endl;
			return 0;
		}
	}
	cout << "YES" << endl;
	return 0;
}

Submission Info

Submission Time
Task B - Boxes
User hoget157
Language C++14 (GCC 5.4.1)
Score 0
Code Size 608 Byte
Status WA
Exec Time 69 ms
Memory 1024 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 0 / 500
Status
AC × 3
AC × 21
WA × 9
Set Name Test Cases
Sample sample1.txt, sample2.txt, sample3.txt
All sample1.txt, sample2.txt, sample3.txt, in1.txt, in10.txt, in11.txt, in12.txt, in13.txt, in14.txt, in15.txt, in16.txt, in17.txt, in18.txt, in19.txt, in2.txt, in20.txt, in21.txt, in22.txt, in23.txt, in24.txt, in25.txt, in26.txt, in27.txt, in3.txt, in4.txt, in5.txt, in6.txt, in7.txt, in8.txt, in9.txt
Case Name Status Exec Time Memory
in1.txt AC 47 ms 1024 KB
in10.txt WA 8 ms 384 KB
in11.txt AC 67 ms 1024 KB
in12.txt AC 67 ms 1024 KB
in13.txt AC 58 ms 896 KB
in14.txt AC 2 ms 256 KB
in15.txt AC 2 ms 256 KB
in16.txt AC 2 ms 256 KB
in17.txt AC 2 ms 256 KB
in18.txt AC 2 ms 256 KB
in19.txt AC 2 ms 256 KB
in2.txt WA 68 ms 1024 KB
in20.txt AC 2 ms 256 KB
in21.txt AC 67 ms 1024 KB
in22.txt AC 66 ms 1024 KB
in23.txt AC 67 ms 1024 KB
in24.txt WA 5 ms 256 KB
in25.txt WA 8 ms 256 KB
in26.txt AC 63 ms 1024 KB
in27.txt AC 67 ms 1024 KB
in3.txt WA 69 ms 1024 KB
in4.txt WA 68 ms 1024 KB
in5.txt WA 68 ms 1024 KB
in6.txt AC 68 ms 1024 KB
in7.txt AC 68 ms 1024 KB
in8.txt WA 8 ms 384 KB
in9.txt WA 9 ms 384 KB
sample1.txt AC 2 ms 256 KB
sample2.txt AC 2 ms 256 KB
sample3.txt AC 2 ms 256 KB