結果

問題 No.340 雪の足跡
ユーザー mkawa2mkawa2
提出日時 2022-01-23 13:29:35
言語 PyPy3
(7.3.15)
結果
AC  
実行時間 470 ms / 1,000 ms
コード長 1,956 bytes
コンパイル時間 841 ms
コンパイル使用メモリ 86,856 KB
実行使用メモリ 108,928 KB
最終ジャッジ日時 2023-08-19 18:13:47
合計ジャッジ時間 13,555 ms
ジャッジサーバーID
(参考情報)
judge15 / judge10
このコードへのチャレンジ
(要ログイン)

テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 110 ms
71,336 KB
testcase_01 AC 106 ms
71,584 KB
testcase_02 AC 104 ms
71,376 KB
testcase_03 AC 106 ms
71,360 KB
testcase_04 AC 105 ms
71,608 KB
testcase_05 AC 106 ms
71,612 KB
testcase_06 AC 106 ms
71,564 KB
testcase_07 AC 106 ms
71,412 KB
testcase_08 AC 104 ms
71,424 KB
testcase_09 AC 103 ms
71,516 KB
testcase_10 AC 105 ms
71,412 KB
testcase_11 AC 129 ms
77,436 KB
testcase_12 AC 128 ms
77,644 KB
testcase_13 AC 133 ms
78,220 KB
testcase_14 AC 162 ms
79,692 KB
testcase_15 AC 177 ms
80,272 KB
testcase_16 AC 151 ms
78,748 KB
testcase_17 AC 176 ms
80,300 KB
testcase_18 AC 173 ms
80,204 KB
testcase_19 AC 179 ms
80,060 KB
testcase_20 AC 350 ms
102,480 KB
testcase_21 AC 197 ms
78,296 KB
testcase_22 AC 154 ms
96,372 KB
testcase_23 AC 350 ms
102,872 KB
testcase_24 AC 290 ms
102,724 KB
testcase_25 AC 319 ms
102,668 KB
testcase_26 AC 152 ms
78,288 KB
testcase_27 AC 116 ms
77,236 KB
testcase_28 AC 158 ms
79,088 KB
testcase_29 AC 382 ms
92,664 KB
testcase_30 AC 314 ms
89,128 KB
testcase_31 AC 429 ms
106,068 KB
testcase_32 AC 470 ms
108,076 KB
testcase_33 AC 420 ms
106,988 KB
testcase_34 AC 468 ms
108,528 KB
testcase_35 AC 381 ms
108,928 KB
testcase_36 AC 384 ms
108,816 KB
権限があれば一括ダウンロードができます

ソースコード

diff #

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]*w for _ in range(h)]
col = [[0]*h for _ in range(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][j] += 1
            row[s][t] -= 1
        else:
            if i > s: i, s = s, i
            col[j][i] += 1
            col[t][s] -= 1

for i in range(h):
    for j in range(w-1):
        row[i][j+1] += row[i][j]

for j in range(w):
    for i in range(h-1):
        col[j][i+1] += col[j][i]
# p2D(row)
# p2D(col)

def push(i, j, d):
    dist[i][j] = d
    q.append((i, j))

dist = [[-1]*w for _ in range(h)]
q = deque([(0, 0)])
dist[0][0] = 0
while q:
    i, j = q.popleft()
    d = dist[i][j]
    if j and row[i][j-1] and dist[i][j-1] == -1:
        push(i, j-1, d+1)
    if j+1 < w and row[i][j] and dist[i][j+1] == -1:
        push(i, j+1, d+1)
    if i and col[j][i-1] and dist[i-1][j] == -1:
        push(i-1, j, d+1)
    if i+1 < h and col[j][i] and dist[i+1][j] == -1:
        push(i+1, j, d+1)
    # pDB(i,j)
    # p2D(dist)

ans = dist[-1][-1]
if ans == -1: ans = "Odekakedekinai.."
print(ans)
0