Submission #1477379


Source Code Expand

#include <iostream>
#define REP(i, a, n) for(ll i = ((ll) a); i < ((ll) n); i++)
using namespace std;
typedef long long ll;

ll N, A[100000];

int main(void) {
  cin >> N;
  REP(i, 0, N) cin >> A[i];

  ll sa = 0;
  REP(i, 0, N) sa += A[i];

  if(sa % (N * (N + 1) / 2) != 0) {
    cout << "NO" << endl;
  } else {
    ll k = sa / (N * (N + 1) / 2);
    ll cnt = 0;
    bool f = 1;
    REP(i, 0, N) {
      f = f && (-A[(i + 1) % N] + A[i] + k) % N == 0;
      cnt += (-A[(i + 1) % N] + A[i] + k) / N;
    }
    cout << (f && cnt == k ? "YES" : "NO") << endl;
  }
}

Submission Info

Submission Time
Task B - Boxes
User kshinya
Language C++14 (GCC 5.4.1)
Score 0
Code Size 593 Byte
Status WA
Exec Time 43 ms
Memory 1024 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 0 / 500
Status
AC × 3
AC × 28
WA × 5
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 35 ms 1024 KB
in10.txt AC 5 ms 384 KB
in11.txt WA 43 ms 1024 KB
in12.txt WA 43 ms 1024 KB
in13.txt WA 37 ms 896 KB
in14.txt AC 1 ms 256 KB
in15.txt AC 1 ms 256 KB
in16.txt AC 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 1024 KB
in20.txt AC 1 ms 256 KB
in21.txt AC 40 ms 1024 KB
in22.txt AC 40 ms 1024 KB
in23.txt AC 40 ms 1024 KB
in24.txt AC 3 ms 256 KB
in25.txt AC 5 ms 384 KB
in26.txt WA 42 ms 1024 KB
in27.txt WA 43 ms 1024 KB
in3.txt AC 43 ms 1024 KB
in4.txt AC 43 ms 1024 KB
in5.txt AC 43 ms 1024 KB
in6.txt AC 40 ms 1024 KB
in7.txt AC 40 ms 1024 KB
in8.txt AC 5 ms 384 KB
in9.txt AC 5 ms 384 KB
sample1.txt AC 1 ms 256 KB
sample2.txt AC 1 ms 256 KB
sample3.txt AC 1 ms 256 KB