from collections import *
n,s = map(int, input().split())
grid = [list(input()) for i in range(n)]
hives = []
start = []
end = []
for i in range(n):
for j in range(n):
if grid[i][j] == "M":
start = [i,j]
elif grid[i][j] == "D":
end = [i,j]
elif grid[i][j] == "H":
hives.append([i,j])
grid[i][j] = 0
def bfsinit():
d = deque()
for i in hives:
d.append(i+[0])
while len(d):
node = d.popleft()
for a,b in [(0,1), (0,-1), (1, 0), (-1, 0)]:
a += node[0]
b += node[1]
if 0<=a<n and 0<=b<n:
if grid[a][b] == "G" or grid[a][b] == "M":
d.append([a,b,node[2]+1])
grid[a][b] = node[2]+1
def test(time):
d = deque()
visited = [[False for i in range(n)] for i in range(n)]
d.append(start+[0])
while len(d):
node = d.popleft()
if node[0] == end[0] and node[1]==end[1]:
return True
for a,b in [(0,1), (0,-1), (1, 0), (-1, 0)]:
a += node[0]
b += node[1]
if 0<=a<n and 0<=b<n and not visited[a][b]:
if grid[a][b]=="T":
continue
if grid[a][b] == "D" or int(grid[a][b]) >= time+(node[2])//s+1:
d.append([a,b,node[2]+1])
visited[a][b] = True
return False
bfsinit()
for i in range(100, -1 ,-1):
if test(i):
print(i)
break
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
47 ms |
19200 KB |
Output isn't correct |
2 |
Incorrect |
58 ms |
19332 KB |
Output isn't correct |
3 |
Incorrect |
63 ms |
19300 KB |
Output isn't correct |
4 |
Incorrect |
48 ms |
19176 KB |
Output isn't correct |
5 |
Correct |
47 ms |
19220 KB |
Output is correct |
6 |
Correct |
51 ms |
19204 KB |
Output is correct |
7 |
Runtime error |
258 ms |
65536 KB |
Execution killed with signal 9 |
8 |
Incorrect |
71 ms |
19536 KB |
Output isn't correct |
9 |
Correct |
53 ms |
19664 KB |
Output is correct |
10 |
Correct |
51 ms |
19484 KB |
Output is correct |
11 |
Correct |
51 ms |
19584 KB |
Output is correct |
12 |
Incorrect |
59 ms |
20308 KB |
Output isn't correct |
13 |
Incorrect |
86 ms |
21896 KB |
Output isn't correct |
14 |
Incorrect |
154 ms |
24572 KB |
Output isn't correct |
15 |
Incorrect |
46 ms |
18740 KB |
Output isn't correct |
16 |
Correct |
48 ms |
19364 KB |
Output is correct |
17 |
Incorrect |
49 ms |
19552 KB |
Output isn't correct |
18 |
Incorrect |
48 ms |
19320 KB |
Output isn't correct |
19 |
Incorrect |
54 ms |
19624 KB |
Output isn't correct |
20 |
Incorrect |
56 ms |
19528 KB |
Output isn't correct |
21 |
Incorrect |
62 ms |
20420 KB |
Output isn't correct |
22 |
Incorrect |
61 ms |
20432 KB |
Output isn't correct |
23 |
Incorrect |
62 ms |
20152 KB |
Output isn't correct |
24 |
Incorrect |
62 ms |
20236 KB |
Output isn't correct |
25 |
Incorrect |
70 ms |
20036 KB |
Output isn't correct |
26 |
Incorrect |
65 ms |
19908 KB |
Output isn't correct |
27 |
Incorrect |
63 ms |
20352 KB |
Output isn't correct |
28 |
Incorrect |
62 ms |
20468 KB |
Output isn't correct |
29 |
Incorrect |
67 ms |
20300 KB |
Output isn't correct |
30 |
Incorrect |
70 ms |
20840 KB |
Output isn't correct |
31 |
Incorrect |
66 ms |
20356 KB |
Output isn't correct |
32 |
Incorrect |
69 ms |
20560 KB |
Output isn't correct |
33 |
Incorrect |
97 ms |
29040 KB |
Output isn't correct |
34 |
Incorrect |
143 ms |
30460 KB |
Output isn't correct |
35 |
Execution timed out |
1093 ms |
38856 KB |
Time limit exceeded |
36 |
Incorrect |
116 ms |
29992 KB |
Output isn't correct |
37 |
Incorrect |
134 ms |
32380 KB |
Output isn't correct |
38 |
Execution timed out |
1080 ms |
42044 KB |
Time limit exceeded |
39 |
Incorrect |
120 ms |
33948 KB |
Output isn't correct |
40 |
Incorrect |
157 ms |
36920 KB |
Output isn't correct |
41 |
Execution timed out |
1090 ms |
50684 KB |
Time limit exceeded |
42 |
Incorrect |
149 ms |
36540 KB |
Output isn't correct |
43 |
Incorrect |
162 ms |
38352 KB |
Output isn't correct |
44 |
Execution timed out |
1085 ms |
56428 KB |
Time limit exceeded |
45 |
Incorrect |
169 ms |
42788 KB |
Output isn't correct |
46 |
Incorrect |
180 ms |
42460 KB |
Output isn't correct |
47 |
Execution timed out |
1087 ms |
60596 KB |
Time limit exceeded |
48 |
Incorrect |
172 ms |
43780 KB |
Output isn't correct |
49 |
Incorrect |
193 ms |
45884 KB |
Output isn't correct |
50 |
Runtime error |
708 ms |
65536 KB |
Execution killed with signal 9 |
51 |
Incorrect |
191 ms |
51160 KB |
Output isn't correct |
52 |
Incorrect |
256 ms |
53800 KB |
Output isn't correct |
53 |
Runtime error |
518 ms |
65536 KB |
Execution killed with signal 9 |
54 |
Incorrect |
227 ms |
53496 KB |
Output isn't correct |
55 |
Incorrect |
230 ms |
54784 KB |
Output isn't correct |
56 |
Runtime error |
526 ms |
65536 KB |
Execution killed with signal 9 |
57 |
Incorrect |
219 ms |
58548 KB |
Output isn't correct |
58 |
Incorrect |
287 ms |
62604 KB |
Output isn't correct |
59 |
Runtime error |
323 ms |
65536 KB |
Execution killed with signal 9 |
60 |
Runtime error |
301 ms |
65536 KB |
Execution killed with signal 9 |
61 |
Runtime error |
276 ms |
65536 KB |
Execution killed with signal 9 |
62 |
Runtime error |
306 ms |
65536 KB |
Execution killed with signal 9 |
63 |
Runtime error |
252 ms |
65536 KB |
Execution killed with signal 9 |
64 |
Runtime error |
319 ms |
65536 KB |
Execution killed with signal 9 |
65 |
Runtime error |
354 ms |
65536 KB |
Execution killed with signal 9 |
66 |
Runtime error |
249 ms |
65536 KB |
Execution killed with signal 9 |
67 |
Runtime error |
374 ms |
65536 KB |
Execution killed with signal 9 |
68 |
Runtime error |
226 ms |
65536 KB |
Execution killed with signal 9 |
69 |
Runtime error |
238 ms |
65536 KB |
Execution killed with signal 9 |
70 |
Runtime error |
216 ms |
65536 KB |
Execution killed with signal 9 |
71 |
Runtime error |
221 ms |
65536 KB |
Execution killed with signal 9 |
72 |
Runtime error |
226 ms |
65536 KB |
Execution killed with signal 9 |
73 |
Runtime error |
195 ms |
65536 KB |
Execution killed with signal 9 |
74 |
Runtime error |
212 ms |
65536 KB |
Execution killed with signal 9 |
75 |
Runtime error |
189 ms |
65536 KB |
Execution killed with signal 9 |
76 |
Runtime error |
191 ms |
65536 KB |
Execution killed with signal 9 |
77 |
Runtime error |
239 ms |
65536 KB |
Execution killed with signal 9 |
78 |
Runtime error |
244 ms |
65536 KB |
Execution killed with signal 9 |
79 |
Runtime error |
235 ms |
65536 KB |
Execution killed with signal 9 |
80 |
Runtime error |
254 ms |
65536 KB |
Execution killed with signal 9 |
81 |
Runtime error |
247 ms |
65536 KB |
Execution killed with signal 9 |
82 |
Runtime error |
240 ms |
65536 KB |
Execution killed with signal 9 |
83 |
Runtime error |
240 ms |
65536 KB |
Execution killed with signal 9 |
84 |
Runtime error |
276 ms |
65536 KB |
Execution killed with signal 9 |
85 |
Runtime error |
239 ms |
65536 KB |
Execution killed with signal 9 |
86 |
Runtime error |
241 ms |
65536 KB |
Execution killed with signal 9 |
87 |
Runtime error |
256 ms |
65536 KB |
Execution killed with signal 9 |
88 |
Runtime error |
247 ms |
65536 KB |
Execution killed with signal 9 |
89 |
Runtime error |
242 ms |
65536 KB |
Execution killed with signal 9 |
90 |
Runtime error |
242 ms |
65536 KB |
Execution killed with signal 9 |
91 |
Runtime error |
252 ms |
65536 KB |
Execution killed with signal 9 |
92 |
Runtime error |
266 ms |
65536 KB |
Execution killed with signal 9 |