結果
| 問題 | 
                            No.340 雪の足跡
                             | 
                    
| コンテスト | |
| ユーザー | 
                             mkawa2
                         | 
                    
| 提出日時 | 2022-01-23 13:51:02 | 
| 言語 | PyPy3  (7.3.15)  | 
                    
| 結果 | 
                             
                                AC
                                 
                             
                            
                         | 
                    
| 実行時間 | 881 ms / 1,000 ms | 
| コード長 | 1,844 bytes | 
| コンパイル時間 | 343 ms | 
| コンパイル使用メモリ | 82,144 KB | 
| 実行使用メモリ | 106,344 KB | 
| 最終ジャッジ日時 | 2024-11-29 13:22:52 | 
| 合計ジャッジ時間 | 12,922 ms | 
| 
                            ジャッジサーバーID (参考情報)  | 
                        judge2 / judge3 | 
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| ファイルパターン | 結果 | 
|---|---|
| sample | AC * 5 | 
| other | AC * 32 | 
ソースコード
import sys
# sys.setrecursionlimit(200005)
int1 = lambda x: int(x)-1
pDB = lambda *x: print(*x, end="\n", file=sys.stderr)
p2D = lambda x: print(*x, sep="\n", end="\n\n", file=sys.stderr)
def II(): return int(sys.stdin.readline())
def LI(): return list(map(int, sys.stdin.readline().split()))
def LLI(rows_number): return [LI() for _ in range(rows_number)]
def LI1(): return list(map(int1, sys.stdin.readline().split()))
def LLI1(rows_number): return [LI1() for _ in range(rows_number)]
def SI(): return sys.stdin.readline().rstrip()
dij = [(0, 1), (-1, 0), (0, -1), (1, 0)]
# dij = [(0, 1), (-1, 0), (0, -1), (1, 0), (1, 1), (1, -1), (-1, 1), (-1, -1)]
inf = 18446744073709551615
# inf = 4294967295
# md = 10**9+7
md = 998244353
from collections import deque
w, h, n = LI()
row = [0]*h
col = [0]*w
for _ in range(n):
    m = II()
    bb = LI()
    for k in range(m):
        i, j = divmod(bb[k], w)
        s, t = divmod(bb[k+1], w)
        if i == s:
            if j > t: j, t = t, j
            row[i] |= (1 << t-j)-1 << j
        else:
            if i > s: i, s = s, i
            col[j] |= (1 << s-i)-1 << i
# for a in row: print(bin(a)[2:].zfill(w))
# for a in col: print(bin(a)[2:].zfill(h))
def push(ij):
    dist[ij] = d+1
    if ij == h*w-1: return True
    q.append(ij)
    return False
dist = [-1]*h*w
q = deque([0])
dist[0] = 0
while q:
    ij = q.popleft()
    d = dist[ij]
    i, j = divmod(ij, w)
    if j and row[i] >> j-1 & 1 and dist[ij-1] == -1:
        if push(ij-1): break
    if j+1 < w and row[i] >> j & 1 and dist[ij+1] == -1:
        if push(ij+1): break
    if i and col[j] >> i-1 & 1 and dist[ij-w] == -1:
        if push(ij-w): break
    if i+1 < h and col[j] >> i & 1 and dist[ij+w] == -1:
        if push(ij+w): break
    # pDB(i,j,dist)
ans = dist[-1]
if ans == -1: ans = "Odekakedekinai.."
print(ans)
            
            
            
        
            
mkawa2