Submission #1866494


Source Code Expand

#include <bits/stdc++.h>

using namespace std;
typedef long long ll;

int main(void) {
  int n;
  cin >> n;

  vector<ll> a(n);
  for (int i = 0; i < n; i++) {
    cin >> a[i];
  }

  vector<ll> b = a;
  for (int i = 0; i < n; i++) {
    b[i] = a[i] - a[(i - 1 + n) % n];
  }

  vector<ll> c = b;
  ll sum = 0;
  bool flag = true;
  for (int i = 0; i < n; i++) {
    c[i] = b[i] - b[(i - 1 + n) % n];
    sum += c[i];
    flag &= abs(c[i]) % n == 0;
  }
  cout << (sum == 0 && flag ? "YES" : "NO") << endl;


  return 0;
}

Submission Info

Submission Time
Task B - Boxes
User legosuke
Language C++14 (GCC 5.4.1)
Score 0
Code Size 553 Byte
Status WA
Exec Time 43 ms
Memory 2560 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 0 / 500
Status
AC × 3
AC × 22
WA × 11
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, sample1.txt, sample2.txt, sample3.txt
Case Name Status Exec Time Memory
in1.txt AC 34 ms 2560 KB
in10.txt WA 5 ms 512 KB
in11.txt WA 42 ms 2560 KB
in12.txt WA 42 ms 2560 KB
in13.txt WA 36 ms 2176 KB
in14.txt AC 1 ms 256 KB
in15.txt AC 1 ms 256 KB
in16.txt WA 1 ms 256 KB
in17.txt AC 1 ms 256 KB
in18.txt AC 1 ms 256 KB
in19.txt AC 1 ms 256 KB
in2.txt AC 43 ms 2560 KB
in20.txt AC 1 ms 256 KB
in21.txt AC 43 ms 2560 KB
in22.txt AC 42 ms 2560 KB
in23.txt AC 43 ms 2560 KB
in24.txt WA 3 ms 384 KB
in25.txt WA 5 ms 512 KB
in26.txt WA 42 ms 2560 KB
in27.txt WA 42 ms 2560 KB
in3.txt AC 43 ms 2560 KB
in4.txt AC 43 ms 2560 KB
in5.txt AC 43 ms 2560 KB
in6.txt AC 43 ms 2560 KB
in7.txt AC 43 ms 2560 KB
in8.txt WA 5 ms 512 KB
in9.txt WA 5 ms 512 KB
sample1.txt AC 1 ms 256 KB
sample2.txt AC 1 ms 256 KB
sample3.txt AC 1 ms 256 KB