Submission #2167369


Source Code Expand

#include<bits/stdc++.h>
using namespace std;

int main() {
  int H, W, K;
  cin >> H >> W >> K;
  vector<string> A(H);
  for(auto& i: A) cin >> i;

  const int dy[4] = {0, 0, 1, -1};
  const int dx[4] = {1, -1, 0, 0};
  int sy, sx;
  for(auto i=0; i<H; ++i) for(auto j=0; j<W; ++j) if(A[i][j]=='S') sy= i, sx = j;

  int res = 1e9;

  vector<vector<bool>> used(H, vector<bool>(W));
  using P = pair<int, int>;
  queue<P> q;
  q.emplace(sy, sx);
  used[sy][sx] = true;
  while(!q.empty()) {
    auto y = q.front().first;
    auto x = q.front().second;
    q.pop();
    auto d = min({y, H-1-y, x, W-1-x});
    res = min(res, 1 + (d+K-1)/K);
    for(auto i=0; i<4; ++i) {
      auto ny = y + dy[i];
      auto nx = x + dx[i];
      if(ny<0 || H<=ny) continue;
      if(nx<0 || W<=nx) continue;
      if(A[ny][nx]!='.') continue;
      if(used[ny][nx]) continue;
      used[ny][nx] = true;
      q.emplace(ny, nx);
    }
  }

  cout << res << endl;
}

Submission Info

Submission Time
Task C - Closed Rooms
User chabo
Language C++14 (GCC 5.4.1)
Score 0
Code Size 988 Byte
Status WA
Exec Time 46 ms
Memory 1280 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 0 / 700
Status
AC × 3
AC × 36
WA × 10
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, in28.txt, in29.txt, in3.txt, in30.txt, in31.txt, in32.txt, in33.txt, in34.txt, in35.txt, in36.txt, in37.txt, in38.txt, in39.txt, in4.txt, in40.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 23 ms 1152 KB
in10.txt WA 23 ms 1152 KB
in11.txt AC 23 ms 1152 KB
in12.txt AC 23 ms 1152 KB
in13.txt AC 23 ms 1152 KB
in14.txt AC 23 ms 1152 KB
in15.txt AC 23 ms 1152 KB
in16.txt AC 23 ms 1152 KB
in17.txt AC 25 ms 1152 KB
in18.txt AC 23 ms 1152 KB
in19.txt AC 23 ms 1152 KB
in2.txt AC 23 ms 1152 KB
in20.txt AC 2 ms 384 KB
in21.txt AC 1 ms 256 KB
in22.txt AC 1 ms 256 KB
in23.txt AC 23 ms 1152 KB
in24.txt AC 23 ms 1152 KB
in25.txt AC 23 ms 1152 KB
in26.txt WA 46 ms 1280 KB
in27.txt WA 45 ms 1152 KB
in28.txt AC 46 ms 1152 KB
in29.txt AC 46 ms 1152 KB
in3.txt WA 23 ms 1152 KB
in30.txt WA 46 ms 1152 KB
in31.txt WA 45 ms 1280 KB
in32.txt WA 45 ms 1152 KB
in33.txt AC 42 ms 1152 KB
in34.txt AC 43 ms 1280 KB
in35.txt WA 43 ms 1280 KB
in36.txt AC 23 ms 1152 KB
in37.txt AC 23 ms 1152 KB
in38.txt AC 23 ms 1152 KB
in39.txt WA 44 ms 1280 KB
in4.txt AC 23 ms 1152 KB
in40.txt WA 43 ms 1280 KB
in5.txt AC 23 ms 1152 KB
in6.txt AC 23 ms 1152 KB
in7.txt AC 23 ms 1152 KB
in8.txt AC 23 ms 1152 KB
in9.txt AC 23 ms 1152 KB
sample1.txt AC 1 ms 256 KB
sample2.txt AC 1 ms 256 KB
sample3.txt AC 1 ms 256 KB