結果
問題 | No.1640 簡単な色塗り |
ユーザー | mkawa2 |
提出日時 | 2021-08-06 22:55:49 |
言語 | PyPy3 (7.3.15) |
結果 |
TLE
|
実行時間 | - |
コード長 | 3,287 bytes |
コンパイル時間 | 182 ms |
コンパイル使用メモリ | 82,560 KB |
実行使用メモリ | 235,336 KB |
最終ジャッジ日時 | 2024-06-29 16:00:45 |
合計ジャッジ時間 | 11,855 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge3 |
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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 | 43 ms
59,648 KB |
testcase_01 | AC | 37 ms
54,656 KB |
testcase_02 | AC | 42 ms
54,400 KB |
testcase_03 | AC | 37 ms
54,272 KB |
testcase_04 | AC | 459 ms
200,072 KB |
testcase_05 | AC | 446 ms
200,164 KB |
testcase_06 | AC | 40 ms
54,272 KB |
testcase_07 | AC | 41 ms
54,528 KB |
testcase_08 | AC | 41 ms
54,144 KB |
testcase_09 | AC | 41 ms
54,400 KB |
testcase_10 | TLE | - |
testcase_11 | AC | 1,623 ms
185,460 KB |
testcase_12 | AC | 1,349 ms
161,500 KB |
testcase_13 | TLE | - |
testcase_14 | -- | - |
testcase_15 | -- | - |
testcase_16 | -- | - |
testcase_17 | -- | - |
testcase_18 | -- | - |
testcase_19 | -- | - |
testcase_20 | -- | - |
testcase_21 | -- | - |
testcase_22 | -- | - |
testcase_23 | -- | - |
testcase_24 | -- | - |
testcase_25 | -- | - |
testcase_26 | -- | - |
testcase_27 | -- | - |
testcase_28 | -- | - |
testcase_29 | -- | - |
testcase_30 | -- | - |
testcase_31 | -- | - |
testcase_32 | -- | - |
testcase_33 | -- | - |
testcase_34 | -- | - |
testcase_35 | -- | - |
testcase_36 | -- | - |
testcase_37 | -- | - |
testcase_38 | -- | - |
testcase_39 | -- | - |
testcase_40 | -- | - |
testcase_41 | -- | - |
testcase_42 | -- | - |
testcase_43 | -- | - |
testcase_44 | -- | - |
testcase_45 | -- | - |
testcase_46 | -- | - |
testcase_47 | -- | - |
testcase_48 | -- | - |
testcase_49 | -- | - |
testcase_50 | -- | - |
testcase_51 | -- | - |
testcase_52 | -- | - |
testcase_53 | -- | - |
07_evil_01.txt | -- | - |
07_evil_02.txt | -- | - |
ソースコード
import sys # sys.setrecursionlimit(200005) int1 = lambda x: int(x)-1 p2D = lambda x: print(*x, sep="\n") def II(): return int(sys.stdin.readline()) def LI(): return list(map(int, sys.stdin.readline().split())) def LI1(): return list(map(int1, sys.stdin.readline().split())) def LLI(rows_number): return [LI() for _ in range(rows_number)] 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 = 10**16 # md = 998244353 md = 10**9+7 from collections import * # __dfsのflow_to_meの初期値がinfに相当するか注意 # n頂点,sスタート,tゴール class Dinic: def __init__(self, n, s, t): self.n, self.s, self.t = n, s, t self.to = [[] for _ in range(n)] self.max_flow = -1 def add_edge(self, u, v, cap): u_index_in_to_v = len(self.to[v]) v_index_in_to_u = len(self.to[u]) self.to[u].append([v, cap, u_index_in_to_v]) self.to[v].append([u, 0, v_index_in_to_u]) # 無向辺の追加 def add_undir_edge(self, u, v, cap): u_index_in_to_v = len(self.to[v]) v_index_in_to_u = len(self.to[u]) self.to[u].append([v, cap, u_index_in_to_v]) self.to[v].append([u, cap, v_index_in_to_u]) def __set_level(self): s = self.s level = [-1] * self.n level[s] = 0 q = deque() q.append([s, 0]) while q: u, u_level = q.popleft() for v, cap, _ in self.to[u]: if cap == 0: continue if level[v] != -1: continue level[v] = u_level + 1 if v == self.t: self.level = level return True q.append([v, u_level + 1]) return False def __dfs(self, u=-1, flow_to_me=10 ** 16): if u == -1: u = self.s if u == self.t: return flow_to_me flow_from_me = 0 u_level = self.level[u] for utov_i, (v, cap, vtou_i) in enumerate(self.to[u]): if self.level[v] != u_level + 1: continue if cap == 0: continue flow_to_v = self.__dfs(v, min(cap, flow_to_me - flow_from_me)) if not flow_to_v: continue flow_from_me += flow_to_v self.to[u][utov_i][1] -= flow_to_v self.to[v][vtou_i][1] += flow_to_v return flow_from_me def __calculation(self): res = 0 while self.__set_level(): res += self.__dfs() return res # これが出力用 def get_max_flow(self): if self.max_flow == -1: self.max_flow = self.__calculation() return self.max_flow n = II() mf = Dinic(2*n+2,2*n,2*n+1) for i in range(n): a, b = LI1() mf.add_edge(2*n, i, 1) mf.add_edge(i, a+n, 1) mf.add_edge(i, b+n, 1) mf.add_edge(i+n, 2*n+1, 1) mx = mf.get_max_flow() ans = [0]*n if mx == n: print("Yes") for u in range(n): for v,c,_ in mf.to[u]: if v<2*n and c==0: ans[u]=v-n+1 # if e.src < n and e.flow: # ans[e.src] = e.dst-n+1 print(*ans, sep="\n") else: print("No")