結果
問題 | No.1254 補強への架け橋 |
ユーザー | marroncastle |
提出日時 | 2020-10-10 06:26:03 |
言語 | PyPy3 (7.3.15) |
結果 |
RE
|
実行時間 | - |
コード長 | 1,482 bytes |
コンパイル時間 | 226 ms |
コンパイル使用メモリ | 81,920 KB |
実行使用メモリ | 98,248 KB |
最終ジャッジ日時 | 2024-07-20 15:36:54 |
合計ジャッジ時間 | 19,566 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge2 |
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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 | RE | - |
testcase_01 | RE | - |
testcase_02 | RE | - |
testcase_03 | RE | - |
testcase_04 | RE | - |
testcase_05 | RE | - |
testcase_06 | RE | - |
testcase_07 | RE | - |
testcase_08 | RE | - |
testcase_09 | RE | - |
testcase_10 | RE | - |
testcase_11 | RE | - |
testcase_12 | RE | - |
testcase_13 | RE | - |
testcase_14 | RE | - |
testcase_15 | RE | - |
testcase_16 | RE | - |
testcase_17 | RE | - |
testcase_18 | RE | - |
testcase_19 | RE | - |
testcase_20 | RE | - |
testcase_21 | RE | - |
testcase_22 | RE | - |
testcase_23 | RE | - |
testcase_24 | RE | - |
testcase_25 | RE | - |
testcase_26 | RE | - |
testcase_27 | RE | - |
testcase_28 | RE | - |
testcase_29 | RE | - |
testcase_30 | RE | - |
testcase_31 | RE | - |
testcase_32 | RE | - |
testcase_33 | RE | - |
testcase_34 | RE | - |
testcase_35 | RE | - |
testcase_36 | RE | - |
testcase_37 | RE | - |
testcase_38 | RE | - |
testcase_39 | RE | - |
testcase_40 | RE | - |
testcase_41 | RE | - |
testcase_42 | RE | - |
testcase_43 | RE | - |
testcase_44 | RE | - |
testcase_45 | RE | - |
testcase_46 | RE | - |
testcase_47 | RE | - |
testcase_48 | RE | - |
testcase_49 | RE | - |
testcase_50 | RE | - |
testcase_51 | RE | - |
testcase_52 | RE | - |
testcase_53 | RE | - |
testcase_54 | RE | - |
testcase_55 | RE | - |
testcase_56 | RE | - |
testcase_57 | RE | - |
testcase_58 | RE | - |
testcase_59 | RE | - |
testcase_60 | RE | - |
testcase_61 | RE | - |
testcase_62 | RE | - |
testcase_63 | RE | - |
testcase_64 | RE | - |
testcase_65 | RE | - |
testcase_66 | RE | - |
testcase_67 | RE | - |
testcase_68 | RE | - |
testcase_69 | RE | - |
testcase_70 | RE | - |
testcase_71 | RE | - |
testcase_72 | RE | - |
testcase_73 | RE | - |
testcase_74 | RE | - |
testcase_75 | RE | - |
testcase_76 | RE | - |
testcase_77 | RE | - |
testcase_78 | RE | - |
testcase_79 | RE | - |
testcase_80 | RE | - |
testcase_81 | RE | - |
testcase_82 | RE | - |
testcase_83 | RE | - |
testcase_84 | RE | - |
testcase_85 | RE | - |
testcase_86 | RE | - |
testcase_87 | RE | - |
testcase_88 | RE | - |
testcase_89 | RE | - |
testcase_90 | RE | - |
testcase_91 | RE | - |
testcase_92 | RE | - |
testcase_93 | RE | - |
testcase_94 | RE | - |
testcase_95 | RE | - |
testcase_96 | RE | - |
testcase_97 | RE | - |
testcase_98 | RE | - |
testcase_99 | RE | - |
testcase_100 | RE | - |
testcase_101 | RE | - |
testcase_102 | RE | - |
testcase_103 | RE | - |
testcase_104 | RE | - |
testcase_105 | RE | - |
testcase_106 | RE | - |
testcase_107 | RE | - |
testcase_108 | RE | - |
testcase_109 | RE | - |
testcase_110 | RE | - |
testcase_111 | RE | - |
testcase_112 | RE | - |
testcase_113 | RE | - |
testcase_114 | RE | - |
testcase_115 | RE | - |
testcase_116 | RE | - |
testcase_117 | RE | - |
testcase_118 | RE | - |
testcase_119 | RE | - |
testcase_120 | RE | - |
testcase_121 | RE | - |
testcase_122 | RE | - |
testcase_123 | RE | - |
testcase_124 | RE | - |
testcase_125 | RE | - |
ソースコード
import sys input = sys.stdin.readline from collections import deque class UnDirectedGraph: def __init__(self, N): self.V = N self.edge = [[] for _ in range(self.V)] self.edges = [0]*N self.visited = [False]*N self.parent = [N]*N self.order = [N]*N self.low = [N]*N def add_edges(self, M): for i in range(M): a,b = map(int, input().split()) self.edge[a-1].append((b-1,i)) self.edge[b-1].append((a-1,i)) self.edges[i] = (a-1,b-1) def add_edge(self, a, b): self.edge[a].append(b) self.edge[b].append(a) def low_link(self, start): stack = deque([start]) self.parent[start] = -1 #記録したい値の配列を定義 self.order[start] = 0 cnt = 1 while stack: v = stack[-1] for u,i in self.edge[v]: if u==self.parent[v]: pass elif self.order[u]<self.order[v]: self.low[v] = min(self.low[v], self.order[u]) elif self.parent[u]==N: #行き self.parent[u] = v self.order[u] = cnt self.low[u] = cnt stack.append(u) cnt += 1 break else: self.low[v] = min(self.low[v], self.low[u]) else: stack.pop() #帰り return N = int(input()) G = UnDirectedGraph(N) G.add_edges(N) G.dfs(0) ans = [] for i,(a,b) in enumerate(G.edges): if G.order[a]>G.order[b]: a,b = b,a if G.low[b]<=G.order[a]: ans.append(i+1) print(len(ans)) print(*ans)