Submission #8814505
Source Code Expand
import sys read = sys.stdin.buffer.read readline = sys.stdin.buffer.readline readlines = sys.stdin.buffer.readlines from heapq import heappush, heappop H,W,K = map(int,readline().split()) S = readline().rstrip() A = [b'#' * (W+2)] A += [b'#' + row + b'#' for row in read().split()] A += [b'#' * (W+2)] A = list(b''.join(A)) start = A.index(ord('S')) goal = A.index(ord('G')) A = [x != ord('#') for x in A] INF = 10 ** 18 S += S wait_U = [INF] * (K+K+1) wait_D = [INF] * (K+K+1) wait_R = [INF] * (K+K+1) wait_L = [INF] * (K+K+1) u,d,r,l = [ord(x) for x in 'UDRL'] for n in range(K+K-1,-1,-1): s = S[n] wait_U[n] = 0 if s == u else wait_U[n+1] + 1 wait_D[n] = 0 if s == d else wait_D[n+1] + 1 wait_R[n] = 0 if s == r else wait_R[n+1] + 1 wait_L[n] = 0 if s == l else wait_L[n+1] + 1 H += 2; W += 2 dist = [INF] * (H * W) mask = (1 << 21) - 1 q = [start] dist[start] = 0 while q: x = heappop(q) dv = x >> 21 v = x & mask if v == goal: break if dist[v] < dv: continue dvK = dv % K w = v + 1 if A[w]: dw = dv + wait_R[dvK] + 1 if dist[w] > dw: dist[w] = dw heappush(q,((dw << 21) + w)) w = v - 1 if A[w]: dw = dv + wait_L[dvK] + 1 if dist[w] > dw: dist[w] = dw heappush(q,((dw << 21) + w)) w = v + W if A[w]: dw = dv + wait_D[dvK] + 1 if dist[w] > dw: dist[w] = dw heappush(q,((dw << 21) + w)) w = v - W if A[w]: dw = dv + wait_U[dvK] + 1 if dist[w] > dw: dist[w] = dw heappush(q,((dw << 21) + w)) answer = dist[goal] if answer >= INF: answer = -1 print(answer)
Submission Info
Submission Time | |
---|---|
Task | E - 迷路 |
User | maspy |
Language | PyPy3 (2.4.0) |
Score | 500 |
Code Size | 1792 Byte |
Status | AC |
Exec Time | 1979 ms |
Memory | 175316 KB |
Judge Result
Set Name | Sample | All | ||
---|---|---|---|---|
Score / Max Score | 0 / 0 | 500 / 500 | ||
Status | AC |
|
Set Name | Test Cases |
---|---|
Sample | |
All | 01.txt, 02.txt, 03.txt, 04.txt, 05.txt, 06.txt, 07.txt, 08.txt, 09.txt, 10.txt, 11.txt, 12.txt, 13.txt, 14.txt, 15.txt, 16.txt, 17.txt, 18.txt, 19.txt, 20.txt, 21.txt, 22.txt, 23.txt, 24.txt, 25.txt, 26.txt, 27.txt, 28.txt, 29.txt, 30.txt, 31.txt, 32.txt, 33.txt, 34.txt, 35.txt, 36.txt, 37.txt, 38.txt, 39.txt, 40.txt, 41.txt, s1.txt, s2.txt, s3.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
01.txt | AC | 169 ms | 38256 KB |
02.txt | AC | 166 ms | 38256 KB |
03.txt | AC | 166 ms | 38256 KB |
04.txt | AC | 169 ms | 38256 KB |
05.txt | AC | 167 ms | 38256 KB |
06.txt | AC | 1979 ms | 132308 KB |
07.txt | AC | 1808 ms | 163156 KB |
08.txt | AC | 1924 ms | 153812 KB |
09.txt | AC | 1809 ms | 159828 KB |
10.txt | AC | 1724 ms | 168404 KB |
11.txt | AC | 1774 ms | 158296 KB |
12.txt | AC | 1967 ms | 175316 KB |
13.txt | AC | 1885 ms | 166868 KB |
14.txt | AC | 1890 ms | 172884 KB |
15.txt | AC | 1901 ms | 160340 KB |
16.txt | AC | 581 ms | 115496 KB |
17.txt | AC | 1486 ms | 169428 KB |
18.txt | AC | 1357 ms | 165972 KB |
19.txt | AC | 1093 ms | 149844 KB |
20.txt | AC | 1760 ms | 150484 KB |
21.txt | AC | 1581 ms | 133332 KB |
22.txt | AC | 1652 ms | 156500 KB |
23.txt | AC | 1692 ms | 135252 KB |
24.txt | AC | 1669 ms | 140884 KB |
25.txt | AC | 1598 ms | 141780 KB |
26.txt | AC | 1598 ms | 136276 KB |
27.txt | AC | 1576 ms | 144340 KB |
28.txt | AC | 1671 ms | 142804 KB |
29.txt | AC | 1709 ms | 143444 KB |
30.txt | AC | 1675 ms | 149076 KB |
31.txt | AC | 271 ms | 118188 KB |
32.txt | AC | 257 ms | 103468 KB |
33.txt | AC | 274 ms | 117292 KB |
34.txt | AC | 259 ms | 103468 KB |
35.txt | AC | 254 ms | 118188 KB |
36.txt | AC | 252 ms | 102956 KB |
37.txt | AC | 257 ms | 118188 KB |
38.txt | AC | 252 ms | 118188 KB |
39.txt | AC | 254 ms | 101036 KB |
40.txt | AC | 352 ms | 115112 KB |
41.txt | AC | 163 ms | 38256 KB |
s1.txt | AC | 166 ms | 38256 KB |
s2.txt | AC | 167 ms | 38736 KB |
s3.txt | AC | 162 ms | 38256 KB |