結果
問題 | No.86 TVザッピング(2) |
ユーザー | mkawa2 |
提出日時 | 2023-03-06 15:00:18 |
言語 | PyPy3 (7.3.15) |
結果 |
WA
|
実行時間 | - |
コード長 | 2,692 bytes |
コンパイル時間 | 133 ms |
コンパイル使用メモリ | 81,948 KB |
実行使用メモリ | 76,516 KB |
最終ジャッジ日時 | 2024-09-18 01:50:14 |
合計ジャッジ時間 | 2,337 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge1 |
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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 | 35 ms
52,864 KB |
testcase_01 | AC | 38 ms
52,480 KB |
testcase_02 | AC | 35 ms
52,352 KB |
testcase_03 | AC | 36 ms
52,992 KB |
testcase_04 | AC | 35 ms
52,864 KB |
testcase_05 | AC | 34 ms
52,992 KB |
testcase_06 | AC | 34 ms
52,352 KB |
testcase_07 | AC | 34 ms
52,992 KB |
testcase_08 | AC | 46 ms
62,976 KB |
testcase_09 | AC | 67 ms
76,516 KB |
testcase_10 | WA | - |
testcase_11 | WA | - |
testcase_12 | WA | - |
testcase_13 | AC | 38 ms
52,736 KB |
testcase_14 | AC | 52 ms
63,616 KB |
testcase_15 | AC | 45 ms
59,648 KB |
testcase_16 | AC | 45 ms
59,904 KB |
testcase_17 | AC | 38 ms
53,376 KB |
testcase_18 | AC | 37 ms
52,480 KB |
testcase_19 | AC | 36 ms
53,120 KB |
testcase_20 | AC | 34 ms
52,352 KB |
testcase_21 | AC | 41 ms
60,288 KB |
testcase_22 | AC | 35 ms
52,648 KB |
testcase_23 | AC | 53 ms
65,136 KB |
testcase_24 | WA | - |
testcase_25 | AC | 35 ms
52,736 KB |
testcase_26 | WA | - |
testcase_27 | AC | 34 ms
52,736 KB |
testcase_28 | AC | 33 ms
52,736 KB |
testcase_29 | AC | 40 ms
60,388 KB |
testcase_30 | AC | 35 ms
52,992 KB |
testcase_31 | AC | 38 ms
52,992 KB |
testcase_32 | AC | 37 ms
52,736 KB |
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 = (1 << 63)-1 # inf = (1 << 31)-1 md = 10**9+7 # md = 998244353 class UnionFind: def __init__(self, n): self.state = [-1]*n self.size_table = [1]*n self.cnt = n def root(self, u): stack = [] while self.state[u] >= 0: stack.append(u) u = self.state[u] for v in stack: self.state[v] = u return u def same(self, u, v): return self.root(u) == self.root(v) def merge(self, u, v): u = self.root(u) v = self.root(v) if u == v: return False du = -self.state[u] dv = -self.state[v] if du < dv: u, v = v, u if du == dv: self.state[u] -= 1 self.state[v] = u self.cnt -= 1 self.size_table[u] += self.size_table[v] return True def size(self, u): return self.size_table[self.root(u)] def ok(): h, w = LI() aa = [[c == "#" for c in SI()] for _ in range(h)] cnt = [0]*2 gi = gj = -1 for i in range(h): for j, a in enumerate(aa[i]): if a: continue gi, gj = i, j cnt[(i+j) & 1] += 1 if cnt[0] != cnt[1]: return False if cnt[0] == 1: for i in range(h): for j, a in enumerate(aa[i]): if a: continue for di, dj in dij: ni, nj = i+di, j+dj if ni < 0 or nj < 0 or ni >= h or nj >= w: continue if aa[ni][nj] == 0: return True return False uf = UnionFind(h*w) for i in range(h): for j, a in enumerate(aa[i]): if a: continue c0 = 0 for di, dj in dij: ni, nj = i+di, j+dj if ni < 0 or nj < 0 or ni >= h or nj >= w: continue if aa[ni][nj]: continue c0 += 1 uf.merge(i*w+j, ni*w+nj) if c0 < 2: return False return uf.size(gi*w+gj) == sum(cnt) print("YES" if ok() else "NO")