Submission #1093042


Source Code Expand

#include <cstdio>
#include <algorithm>

using namespace std;

int main()
{
  int N, A[100000];
  scanf("%d", &N);

  for(int i = 0; i < N; i++) {
    scanf("%d", &A[i]);
  }


  while(true) {
    int flip = -1;
    int sum = 1;
    for(int i = 0; i < N - 1; i++) {
      if(A[i] >= A[i + 1]) {
        flip = i;
        sum = (A[i] + 1LL * A[i + 1] * N - 1) / (1LL * A[i + 1] * N);
        break;
      }
    }
    if(flip == -1 && A[N - 1] >= A[0]) {
      flip = N - 1;
      sum = (A[N - 1] + 1LL * A[0] * N - 1) / (1LL * A[0] * N);
    }
    sum = max(sum, 1);

    for(int i = 0; i <= N; i++) {
      int idx = i + flip;
      if(i + flip >= N) idx -= N;
      A[idx] -= i * sum;
    }
    int a = 0, b = 0;
    for(int i = 0; i < N; i++) {
      if(A[i] < 0) ++a;
      else if(A[i] == 0) ++b;
    }
    if(a > 0) {
      puts("NO");
      break;
    } else if(b == N) {
      puts("YES");
      break;
    }
  }


}

Submission Info

Submission Time
Task B - Boxes
User ei13333
Language C++14 (Clang 3.8.0)
Score 0
Code Size 975 Byte
Status TLE
Exec Time 2102 ms
Memory 1272 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 0 / 500
Status
AC × 3
AC × 22
TLE × 8
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 18 ms 1272 KB
in10.txt AC 1130 ms 256 KB
in11.txt AC 15 ms 640 KB
in12.txt AC 15 ms 640 KB
in13.txt AC 13 ms 640 KB
in14.txt AC 3 ms 256 KB
in15.txt TLE 2102 ms 256 KB
in16.txt TLE 2102 ms 256 KB
in17.txt TLE 2102 ms 256 KB
in18.txt TLE 2102 ms 256 KB
in19.txt AC 3 ms 256 KB
in2.txt TLE 2068 ms 640 KB
in20.txt AC 3 ms 256 KB
in21.txt AC 15 ms 640 KB
in22.txt AC 15 ms 640 KB
in23.txt AC 15 ms 640 KB
in24.txt AC 236 ms 256 KB
in25.txt AC 705 ms 256 KB
in26.txt AC 15 ms 640 KB
in27.txt AC 15 ms 640 KB
in3.txt TLE 2054 ms 640 KB
in4.txt TLE 2102 ms 640 KB
in5.txt TLE 2102 ms 640 KB
in6.txt AC 302 ms 640 KB
in7.txt AC 866 ms 640 KB
in8.txt AC 254 ms 256 KB
in9.txt AC 1251 ms 256 KB
sample1.txt AC 3 ms 256 KB
sample2.txt AC 3 ms 256 KB
sample3.txt AC 3 ms 256 KB