結果
| 問題 | No.5006 Hidden Maze |
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2022-06-12 18:04:21 |
| 言語 | PyPy3 (7.3.15) |
| 結果 |
TLE
|
| 実行時間 | - |
| コード長 | 3,075 bytes |
| コンパイル時間 | 518 ms |
| 実行使用メモリ | 113,352 KB |
| スコア | 40,719 |
| 平均クエリ数 | 123.33 |
| 最終ジャッジ日時 | 2022-06-12 18:06:55 |
| 合計ジャッジ時間 | 152,501 ms |
|
ジャッジサーバーID (参考情報) |
judge12 / judge11 |
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| ファイルパターン | 結果 |
|---|---|
| other | AC * 58 TLE * 42 |
ソースコード
from heapq import heapify, heappop as pop, heappush as push
from random import sample, randint
D = ((-1, 0), (0, -1), (0, 1), (1, 0))
def solve(H, W, P):
stop_cnt = [[0]*(H*W) for _ in range(H*W)]
is_empty = [[False]*(H*W) for _ in range(H*W)]
def rc2idx(row, col):
return row*W+col
def idx2rc(idx):
return idx//W, idx%W
def is_empty_idx(idx1, idx2):
return is_empty[idx1][idx2]
def is_empty_rc(row1, col1, row2, col2):
return is_empty_idx(rc2idx(row1, col1), rc2idx(row2, col2))
def empty_per_idx(idx1, idx2):
return 0
def empty_per_rc(row1, col1, row2, col2):
return empty_per_idx(rc2idx(row1, col1), rc2idx(row2, col2))
def through_per_idx(idx1, idx2):
if is_empty_idx(idx1, idx2):
return (100-P)/100
if stop_cnt[idx1][idx2]==1 and randint(1, 100)<=3:
return (100-P)/100
return (pow(P, stop_cnt[idx1][idx2])/pow(100, stop_cnt[idx1][idx2]-1)-P)/100
def through_per_rc(row1, col1, row2, col2):
return through_per_idx(rc2idx(row1, col1), rc2idx(row2, col2))
def cmd_rc(row1, col1, row2, col2):
if row1 > row2:
return "U"
if row1 < row2:
return "D"
if col1 > col2:
return "L"
if col1 < col2:
return "R"
def cmd_idx(idx1, idx2):
r1, c1 = idx2rc(idx1)
r2, c2 = idx2rc(idx2)
return cmd_rc(r1, c1, r2, c2)
for try_cnt in range(1, 1000+1):
q = [(-1, 0, 0)]
fixed = [[False]*W for _ in range(H)]
dist = [[10]*W for _ in range(H)]
prev = [[None]*W for _ in range(H)]
while q:
qper, qh, qw = pop(q)
if fixed[qh][qw]:
continue
fixed[qh][qw] = True
for a, b in sample(D, 4):
h = qh+a; w = qw+b
if not 0 <= h < H:
continue
if not 0 <= w < W:
continue
if fixed[h][w]:
continue
per = -(-qper*through_per_rc(qh, qw, h, w))
if dist[h][w] <= per:
continue
q.append((per, h, w))
prev[h][w] = (qh, qw)
dist[h][w] = per
node_idxs = []
h, w = H-1, W-1
while h+w:
node_idxs.append(rc2idx(h, w))
h, w = prev[h][w]
node_idxs.append(0)
node_idxs.reverse()
cmd = []
for i in range(len(node_idxs)-1):
cmd.append(cmd_idx(node_idxs[i], node_idxs[i+1]))
print(*cmd, sep="")
through_cnt = int(input())
if through_cnt == -1:
return
for i in range(through_cnt):
is_empty[node_idxs[i]][node_idxs[i+1]] = True
is_empty[node_idxs[i+1]][node_idxs[i]] = True
stop_cnt[node_idxs[through_cnt]][node_idxs[through_cnt+1]] += 1
stop_cnt[node_idxs[through_cnt+1]][node_idxs[through_cnt]] += 1
H, W, P = map(int, input().split())
solve(H, W, P)