#include <bits/stdc++.h>
using namespace std;
const int Z = 1<<20;
const int dx[4][2] = {{-1, 0}, {1, 0}, {0, -1}, {0, 1}};
int N, S, h[Z], m[Z], ans = -1, e, r;
string g, _;
void BFS(char src, int *d) {
fill(d, d + N * N, Z);
queue<int> q;
for(int i = N * N; --i >= 0; ) {
if(g[i] == src && ans < h[i])
d[i] = 0, q.push(i);
if(g[i] == 'D') e = i, g[i] = 30;
}
while(!empty(q)) {
int k = q.front(), i = k / N, j = k % N; q.pop();
for(auto &[s, t] : dx) {
int x = i + s, y = j + t, z = x * N + y;
if(min(x, y) < 0 || max(x, y) >= N || d[z] != Z) continue;
if((g[z] & 1 || g[z] == r) && (!r || (d[k] + 1) / S + ans < h[z]))
d[z] = d[k] + 1, q.push(z);
}
}
}
signed main(){
cin >> N >> S;
for(int i = 0; i < N; i++)
cin >> _, g += _;
BFS('H', h);
for(int b = r = 30; --b >= 0; ) {
ans += 1 << b;
BFS('M', m);
if(m[e] == Z) ans -= 1 << b;
}
cout << ans;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
204 KB |
Output is correct |
| 2 |
Correct |
0 ms |
204 KB |
Output is correct |
| 3 |
Correct |
0 ms |
204 KB |
Output is correct |
| 4 |
Correct |
0 ms |
204 KB |
Output is correct |
| 5 |
Correct |
0 ms |
204 KB |
Output is correct |
| 6 |
Correct |
0 ms |
204 KB |
Output is correct |
| 7 |
Correct |
88 ms |
6056 KB |
Output is correct |
| 8 |
Correct |
0 ms |
204 KB |
Output is correct |
| 9 |
Correct |
0 ms |
204 KB |
Output is correct |
| 10 |
Correct |
0 ms |
204 KB |
Output is correct |
| 11 |
Correct |
0 ms |
204 KB |
Output is correct |
| 12 |
Correct |
1 ms |
332 KB |
Output is correct |
| 13 |
Correct |
1 ms |
332 KB |
Output is correct |
| 14 |
Correct |
1 ms |
332 KB |
Output is correct |
| 15 |
Correct |
0 ms |
204 KB |
Output is correct |
| 16 |
Correct |
0 ms |
204 KB |
Output is correct |
| 17 |
Correct |
0 ms |
204 KB |
Output is correct |
| 18 |
Correct |
0 ms |
204 KB |
Output is correct |
| 19 |
Correct |
0 ms |
204 KB |
Output is correct |
| 20 |
Correct |
0 ms |
204 KB |
Output is correct |
| 21 |
Correct |
0 ms |
204 KB |
Output is correct |
| 22 |
Correct |
1 ms |
204 KB |
Output is correct |
| 23 |
Correct |
0 ms |
332 KB |
Output is correct |
| 24 |
Correct |
0 ms |
332 KB |
Output is correct |
| 25 |
Correct |
1 ms |
332 KB |
Output is correct |
| 26 |
Correct |
1 ms |
332 KB |
Output is correct |
| 27 |
Correct |
1 ms |
332 KB |
Output is correct |
| 28 |
Correct |
1 ms |
332 KB |
Output is correct |
| 29 |
Correct |
1 ms |
332 KB |
Output is correct |
| 30 |
Correct |
1 ms |
332 KB |
Output is correct |
| 31 |
Correct |
1 ms |
332 KB |
Output is correct |
| 32 |
Correct |
1 ms |
332 KB |
Output is correct |
| 33 |
Correct |
10 ms |
1440 KB |
Output is correct |
| 34 |
Correct |
9 ms |
1440 KB |
Output is correct |
| 35 |
Correct |
20 ms |
1440 KB |
Output is correct |
| 36 |
Correct |
10 ms |
1800 KB |
Output is correct |
| 37 |
Correct |
11 ms |
1800 KB |
Output is correct |
| 38 |
Correct |
26 ms |
1800 KB |
Output is correct |
| 39 |
Correct |
13 ms |
2212 KB |
Output is correct |
| 40 |
Correct |
14 ms |
2160 KB |
Output is correct |
| 41 |
Correct |
34 ms |
2160 KB |
Output is correct |
| 42 |
Correct |
18 ms |
2644 KB |
Output is correct |
| 43 |
Correct |
18 ms |
2644 KB |
Output is correct |
| 44 |
Correct |
41 ms |
2560 KB |
Output is correct |
| 45 |
Correct |
19 ms |
3108 KB |
Output is correct |
| 46 |
Correct |
20 ms |
3108 KB |
Output is correct |
| 47 |
Correct |
53 ms |
3108 KB |
Output is correct |
| 48 |
Correct |
26 ms |
3620 KB |
Output is correct |
| 49 |
Correct |
23 ms |
3600 KB |
Output is correct |
| 50 |
Correct |
61 ms |
3560 KB |
Output is correct |
| 51 |
Correct |
27 ms |
4160 KB |
Output is correct |
| 52 |
Correct |
28 ms |
4160 KB |
Output is correct |
| 53 |
Correct |
78 ms |
4044 KB |
Output is correct |
| 54 |
Correct |
32 ms |
4644 KB |
Output is correct |
| 55 |
Correct |
33 ms |
4640 KB |
Output is correct |
| 56 |
Correct |
87 ms |
4628 KB |
Output is correct |
| 57 |
Correct |
42 ms |
5344 KB |
Output is correct |
| 58 |
Correct |
42 ms |
5264 KB |
Output is correct |
| 59 |
Correct |
103 ms |
5280 KB |
Output is correct |
| 60 |
Correct |
40 ms |
5976 KB |
Output is correct |
| 61 |
Correct |
42 ms |
6016 KB |
Output is correct |
| 62 |
Correct |
120 ms |
6056 KB |
Output is correct |
| 63 |
Correct |
113 ms |
6008 KB |
Output is correct |
| 64 |
Correct |
177 ms |
6136 KB |
Output is correct |
| 65 |
Correct |
169 ms |
6044 KB |
Output is correct |
| 66 |
Correct |
133 ms |
6004 KB |
Output is correct |
| 67 |
Correct |
124 ms |
6008 KB |
Output is correct |
| 68 |
Correct |
70 ms |
6048 KB |
Output is correct |
| 69 |
Correct |
67 ms |
6048 KB |
Output is correct |
| 70 |
Correct |
59 ms |
6000 KB |
Output is correct |
| 71 |
Correct |
53 ms |
6012 KB |
Output is correct |
| 72 |
Correct |
52 ms |
6008 KB |
Output is correct |
| 73 |
Correct |
52 ms |
6008 KB |
Output is correct |
| 74 |
Correct |
71 ms |
6028 KB |
Output is correct |
| 75 |
Correct |
76 ms |
6036 KB |
Output is correct |
| 76 |
Correct |
74 ms |
6084 KB |
Output is correct |
| 77 |
Correct |
74 ms |
6048 KB |
Output is correct |
| 78 |
Correct |
85 ms |
6008 KB |
Output is correct |
| 79 |
Correct |
69 ms |
6056 KB |
Output is correct |
| 80 |
Correct |
74 ms |
6000 KB |
Output is correct |
| 81 |
Correct |
85 ms |
6056 KB |
Output is correct |
| 82 |
Correct |
75 ms |
6056 KB |
Output is correct |
| 83 |
Correct |
86 ms |
6004 KB |
Output is correct |
| 84 |
Correct |
78 ms |
6012 KB |
Output is correct |
| 85 |
Correct |
77 ms |
6048 KB |
Output is correct |
| 86 |
Correct |
82 ms |
6008 KB |
Output is correct |
| 87 |
Correct |
85 ms |
6048 KB |
Output is correct |
| 88 |
Correct |
84 ms |
6008 KB |
Output is correct |
| 89 |
Correct |
87 ms |
5972 KB |
Output is correct |
| 90 |
Correct |
88 ms |
6048 KB |
Output is correct |
| 91 |
Correct |
86 ms |
6004 KB |
Output is correct |
| 92 |
Correct |
84 ms |
6012 KB |
Output is correct |
