結果
| 問題 | No.3504 Insert Maze |
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2026-04-18 10:27:59 |
| 言語 | PyPy3 (7.3.17) |
| 結果 |
TLE
|
| 実行時間 | - |
| コード長 | 1,980 bytes |
| 記録 | |
| コンパイル時間 | 364 ms |
| コンパイル使用メモリ | 85,120 KB |
| 実行使用メモリ | 179,072 KB |
| 最終ジャッジ日時 | 2026-04-18 10:29:11 |
| 合計ジャッジ時間 | 27,387 ms |
|
ジャッジサーバーID (参考情報) |
judge3_0 / judge2_0 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 22 TLE * 6 -- * 57 |
ソースコード
# snippet: templete_
# Last Modified: 2026-02-13
from collections import deque, defaultdict
from itertools import permutations, product
from bisect import bisect_left, bisect_right
from heapq import heappush, heappop
from random import randint, shuffle
from time import perf_counter as pc
def II(): return int(input())
def LI(): return list(map(int,input().split()))
def LI_1(): return [int(x) - 1 for x in input().split()]
def SI(): return input()
def LS(): return list(input().split())
mod = 998244353
inf = 1001001001001001001
import sys
sys.setrecursionlimit(10 ** 6)
input = lambda: sys.stdin.readline().rstrip()
_buf = []
def print(*a, **k): _buf.append(" ".join(map(str, a)))
D = [(1, 0), (-1, 0), (0, 1), (0, -1)]
def solve():
H, W = LI()
S = [SI() for _ in range(H)]
dp = [[inf] * W for _ in range(H)]
dp[0][0] = 0
hq = [(0, 0, 0)]
while hq:
c, i, j = heappop(hq)
if dp[i][j] < c:
continue
for di, dj in D:
ni, nj = i + di, j + dj
if 0 <= ni < H and 0 <= nj < W:
if S[ni][nj] == "#":
nc = c + 2
if dp[ni][nj] > nc:
dp[ni][nj] = nc
heappush(hq, (nc, ni, nj))
ni += di; nj += dj
while 0 <= ni < H and 0 <= nj < W:
nc += 1
if dp[ni][nj] > nc:
dp[ni][nj] = nc
heappush(hq, (nc, ni, nj))
ni += di; nj += dj
else:
nc = c + 1
if dp[ni][nj] > nc:
dp[ni][nj] = nc
heappush(hq, (nc, ni, nj))
assert dp[-1][-1] != inf
print(dp[-1][-1])
return
if __name__ == "__main__":
T = 1
# T = II()
for _ in range(T):
solve()
sys.stdout.write("\n".join(_buf) + "\n")