Submission #1481431


Source Code Expand

#include<bits/stdc++.h>

using namespace std;

const int INF = 1 << 29;

int main()
{
  int N, M, R, T;
  int G[2500][2500];
  fill_n(*G, 2500 * 2500, INF);
  for(int i = 0; i < N; i++) G[i][i] = 0;

  cin >> N >> M >> R >> T;
  for(int i = 0; i < M; i++) {
    int A, B, C;
    cin >> A >> B >> C;
    --A, --B;
    G[A][B] = C;
    G[B][A] = C;
  }
  for(int k = 0; k < N; k++) {
    for(int i = 0; i < N; i++) {
      for(int j = 0; j < N; j++) {
        G[i][j] = min(G[i][j], G[i][k] + G[k][j]);
      }
    }
  }

  int ret = 0;
  for(int C = 0; C < N; C++) {
    vector< int > st;
    for(int i = 0; i < N; i++) {
      if(i == C) continue;
      st.push_back(G[C][i]);
    }
    sort(begin(st), end(st));

    int tail = 0;
    for(int i = 0; i < st.size(); i++) {
      while(tail < st.size() && 1LL * st[tail] * T <= 1LL * st[i] * R) ++tail;
      ret += st.size() - tail;
      if(tail <= i) --ret;
    }
  }

  cout << ret << endl;


}

Submission Info

Submission Time
Task C - ウサギとカメ
User ei13333
Language C++14 (GCC 5.4.1)
Score 0
Code Size 996 Byte
Status TLE
Exec Time 7356 ms
Memory 24704 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 0 / 100
Status
AC × 2
AC × 13
TLE × 5
Set Name Test Cases
Sample subtask0_sample-01.txt, subtask0_sample-02.txt
All subtask0_sample-01.txt, subtask0_sample-02.txt, subtask1_01.txt, subtask1_02.txt, subtask1_03.txt, subtask1_04.txt, subtask1_05.txt, subtask1_06.txt, subtask1_07.txt, subtask1_08.txt, subtask1_09.txt, subtask1_10.txt, subtask1_11.txt, subtask1_12.txt, subtask1_13.txt, subtask1_14.txt, subtask1_15.txt, subtask1_16.txt
Case Name Status Exec Time Memory
subtask0_sample-01.txt AC 9 ms 24704 KB
subtask0_sample-02.txt AC 9 ms 24704 KB
subtask1_01.txt AC 9 ms 24704 KB
subtask1_02.txt AC 9 ms 24704 KB
subtask1_03.txt AC 9 ms 24704 KB
subtask1_04.txt AC 9 ms 24704 KB
subtask1_05.txt AC 19 ms 24704 KB
subtask1_06.txt AC 19 ms 24704 KB
subtask1_07.txt AC 43 ms 24704 KB
subtask1_08.txt AC 85 ms 24704 KB
subtask1_09.txt AC 2397 ms 24704 KB
subtask1_10.txt AC 2993 ms 24704 KB
subtask1_11.txt AC 586 ms 24704 KB
subtask1_12.txt TLE 7356 ms 24704 KB
subtask1_13.txt TLE 7356 ms 24704 KB
subtask1_14.txt TLE 7356 ms 24704 KB
subtask1_15.txt TLE 7356 ms 24704 KB
subtask1_16.txt TLE 7356 ms 24704 KB