結果
| 問題 |
No.424 立体迷路
|
| コンテスト | |
| ユーザー |
ayaoni
|
| 提出日時 | 2020-12-18 05:32:00 |
| 言語 | PyPy3 (7.3.15) |
| 結果 |
AC
|
| 実行時間 | 65 ms / 2,000 ms |
| コード長 | 1,857 bytes |
| コンパイル時間 | 159 ms |
| コンパイル使用メモリ | 82,444 KB |
| 実行使用メモリ | 66,692 KB |
| 最終ジャッジ日時 | 2024-09-21 08:54:47 |
| 合計ジャッジ時間 | 2,528 ms |
|
ジャッジサーバーID (参考情報) |
judge4 / judge5 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 5 |
| other | AC * 21 |
ソースコード
import sys
from collections import deque
sys.setrecursionlimit(10**7)
def I(): return int(sys.stdin.readline().rstrip())
def MI(): return map(int,sys.stdin.readline().rstrip().split())
def LI(): return list(map(int,sys.stdin.readline().rstrip().split()))
def LI2(): return list(map(int,sys.stdin.readline().rstrip()))
def S(): return sys.stdin.readline().rstrip()
def LS(): return list(sys.stdin.readline().rstrip().split())
def LS2(): return list(sys.stdin.readline().rstrip())
H,W = MI()
sx,sy,gx,gy = MI()
B = [[0]*(W+1)]+[[0]+LI2() for _ in range(H)]
flag = [[0]*(W+1) for _ in range(H+1)]
flag[sx][sy] = 1
deq = deque([(sx,sy)])
while deq:
x,y = deq.pop()
if 1 <= x-1 <= H and flag[x-1][y] == 0 and abs(B[x-1][y]-B[x][y]) <= 1:
flag[x-1][y] = 1
deq.appendleft((x-1,y))
if 1 <= x+1 <= H and flag[x+1][y] == 0 and abs(B[x+1][y]-B[x][y]) <= 1:
flag[x+1][y] = 1
deq.appendleft((x+1,y))
if 1 <= y-1 <= W and flag[x][y-1] == 0 and abs(B[x][y-1]-B[x][y]) <= 1:
flag[x][y-1] = 1
deq.appendleft((x,y-1))
if 1 <= y+1 <= W and flag[x][y+1] == 0 and abs(B[x][y+1]-B[x][y]) <= 1:
flag[x][y+1] = 1
deq.appendleft((x,y+1))
if 1 <= x-2 <= H and flag[x-2][y] == 0 and B[x-2][y] == B[x][y] and B[x-1][y] < B[x][y]:
flag[x-2][y] = 1
deq.appendleft((x-2,y))
if 1 <= x+2 <= H and flag[x+2][y] == 0 and B[x+2][y] == B[x][y] and B[x+1][y] < B[x][y]:
flag[x+2][y] = 1
deq.appendleft((x+2,y))
if 1 <= y-2 <= W and flag[x][y-2] == 0 and B[x][y-2] == B[x][y] and B[x][y-1] < B[x][y]:
flag[x][y-2] = 1
deq.appendleft((x,y-2))
if 1 <= y+2 <= W and flag[x][y+2] == 0 and B[x][y+2] == B[x][y] and B[x][y+1] < B[x][y]:
flag[x][y+2] = 1
deq.appendleft((x,y+2))
if flag[gx][gy]:
print('YES')
else:
print('NO')
ayaoni