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답안 #1007499

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1007499 2024-06-25T04:28:20 Z huutuan Mecho (IOI09_mecho) C++14
38 / 100
 119 ms 11904 KB 
#include <bits/stdc++.h>

using namespace std;

#define int long long

const int N=810, dx[]={1, -1, 0, 0}, dy[]={0, 0, 1, -1};
int n, s;
char a[N][N];
int d[N][N], f[N][N];
int xm, ym, xd, yd;

bool check(int t){
   queue<pair<int, int>> q;
   memset(f, 0x3f, sizeof f);
   q.emplace(xm, ym); f[xm][ym]=t*s;
   if ((f[xm][ym]+s-1)/s>d[xm][ym]) return 0;
   while (q.size()){
      int x=q.front().first, y=q.front().second; q.pop();
      if (x==xd && y==yd) return 1;
      for (int i=0; i<4; ++i){
         int u=x+dx[i], v=y+dy[i];
         if (u<1 || v<1 || u>n || v>n || f[u][v]<1e18 || (f[x][y]+s)/s>d[u][v] || a[u][v]=='T') continue;
         f[u][v]=f[x][y]+1;
         q.emplace(u, v);
      }
   }
   return 0;
}

int32_t main(){
   ios_base::sync_with_stdio(false);
   cin.tie(nullptr);
   cin >> n >> s;
   queue<pair<int, int>> q;
   memset(d, 0x3f, sizeof d);
   for (int i=1; i<=n; ++i) for (int j=1; j<=n; ++j){
      cin >> a[i][j];
      if (a[i][j]=='M') xm=i, ym=j;
      if (a[i][j]=='D') xd=i, yd=j;
      if (a[i][j]=='H'){
         d[i][j]=0;
         q.emplace(i, j);
      }
   }
   while (q.size()){
      int x=q.front().first, y=q.front().second; q.pop();
      for (int i=0; i<4; ++i){
         int u=x+dx[i], v=y+dy[i];
         if (u<1 || v<1 || u>n || v>n || d[u][v]<1e18 || a[u][v]=='T' || a[u][v]=='D') continue;
         d[u][v]=d[x][y]+1;
         q.emplace(u, v);
      }
   }
   int l=0, r=1e9;
   while (l<=r){
      int mid=(l+r)>>1;
      if (check(mid)) l=mid+1;
      else r=mid-1;
   }
   cout << r << '\n';
   return 0;
}

Subtask #1
38.0 / 100.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 4 ms 10840 KB Output isn't correct
2 Incorrect 4 ms 10840 KB Output isn't correct
3 Incorrect 4 ms 10844 KB Output isn't correct
4 Incorrect 4 ms 10844 KB Output isn't correct
5 Correct 4 ms 10844 KB Output is correct
6 Correct 4 ms 10888 KB Output is correct
7 Correct 55 ms 11412 KB Output is correct
8 Incorrect 5 ms 10844 KB Output isn't correct
9 Correct 4 ms 10844 KB Output is correct
10 Correct 4 ms 10844 KB Output is correct
11 Correct 4 ms 10844 KB Output is correct
12 Incorrect 4 ms 10844 KB Output isn't correct
13 Incorrect 4 ms 10844 KB Output isn't correct
14 Correct 4 ms 10844 KB Output is correct
15 Incorrect 4 ms 10900 KB Output isn't correct
16 Correct 4 ms 10844 KB Output is correct
17 Incorrect 4 ms 10844 KB Output isn't correct
18 Correct 4 ms 10844 KB Output is correct
19 Incorrect 4 ms 10844 KB Output isn't correct
20 Correct 4 ms 10844 KB Output is correct
21 Incorrect 5 ms 10696 KB Output isn't correct
22 Correct 4 ms 10904 KB Output is correct
23 Incorrect 4 ms 10844 KB Output isn't correct
24 Correct 4 ms 10844 KB Output is correct
25 Incorrect 4 ms 10844 KB Output isn't correct
26 Correct 4 ms 10844 KB Output is correct
27 Incorrect 4 ms 10844 KB Output isn't correct
28 Correct 4 ms 10844 KB Output is correct
29 Incorrect 4 ms 10872 KB Output isn't correct
30 Correct 4 ms 10844 KB Output is correct
31 Incorrect 4 ms 10844 KB Output isn't correct
32 Correct 4 ms 10840 KB Output is correct
33 Incorrect 6 ms 10844 KB Output isn't correct
34 Correct 6 ms 11012 KB Output is correct
35 Correct 16 ms 10840 KB Output is correct
36 Incorrect 6 ms 10844 KB Output isn't correct
37 Correct 6 ms 10844 KB Output is correct
38 Correct 18 ms 10972 KB Output is correct
39 Incorrect 7 ms 10844 KB Output isn't correct
40 Correct 7 ms 10844 KB Output is correct
41 Correct 24 ms 10916 KB Output is correct
42 Incorrect 8 ms 11128 KB Output isn't correct
43 Correct 7 ms 11140 KB Output is correct
44 Correct 29 ms 11140 KB Output is correct
45 Incorrect 9 ms 11100 KB Output isn't correct
46 Correct 8 ms 11172 KB Output is correct
47 Correct 35 ms 11004 KB Output is correct
48 Incorrect 9 ms 11100 KB Output isn't correct
49 Correct 8 ms 11192 KB Output is correct
50 Correct 39 ms 11200 KB Output is correct
51 Incorrect 10 ms 11100 KB Output isn't correct
52 Correct 11 ms 11248 KB Output is correct
53 Correct 49 ms 11100 KB Output is correct
54 Incorrect 14 ms 11100 KB Output isn't correct
55 Correct 11 ms 11216 KB Output is correct
56 Correct 51 ms 11284 KB Output is correct
57 Incorrect 12 ms 11100 KB Output isn't correct
58 Correct 11 ms 11144 KB Output is correct
59 Correct 61 ms 11320 KB Output is correct
60 Incorrect 12 ms 11356 KB Output isn't correct
61 Correct 12 ms 11372 KB Output is correct
62 Correct 64 ms 11352 KB Output is correct
63 Correct 71 ms 11356 KB Output is correct
64 Correct 110 ms 11352 KB Output is correct
65 Correct 119 ms 11356 KB Output is correct
66 Incorrect 80 ms 11356 KB Output isn't correct
67 Correct 68 ms 11352 KB Output is correct
68 Correct 34 ms 11344 KB Output is correct
69 Correct 33 ms 11356 KB Output is correct
70 Correct 24 ms 11356 KB Output is correct
71 Correct 27 ms 11352 KB Output is correct
72 Incorrect 23 ms 11248 KB Output isn't correct
73 Incorrect 21 ms 11868 KB Output isn't correct
74 Correct 37 ms 11836 KB Output is correct
75 Correct 37 ms 11868 KB Output is correct
76 Correct 36 ms 11868 KB Output is correct
77 Correct 39 ms 11904 KB Output is correct
78 Correct 45 ms 11608 KB Output is correct
79 Correct 37 ms 11868 KB Output is correct
80 Correct 36 ms 11868 KB Output is correct
81 Correct 41 ms 11864 KB Output is correct
82 Correct 33 ms 11608 KB Output is correct
83 Correct 47 ms 11612 KB Output is correct
84 Correct 46 ms 11612 KB Output is correct
85 Correct 46 ms 11612 KB Output is correct
86 Correct 51 ms 11612 KB Output is correct
87 Correct 47 ms 11864 KB Output is correct
88 Correct 46 ms 11612 KB Output is correct
89 Correct 56 ms 11612 KB Output is correct
90 Correct 47 ms 11608 KB Output is correct
91 Correct 50 ms 11612 KB Output is correct
92 Correct 53 ms 11612 KB Output is correct