結果
問題 | No.1610 She Loves Me, She Loves Me Not, ... |
ユーザー |
|
提出日時 | 2024-03-08 11:55:04 |
言語 | Python3 (3.13.1 + numpy 2.2.1 + scipy 1.14.1) |
結果 |
AC
|
実行時間 | 53 ms / 2,000 ms |
コード長 | 1,280 bytes |
コンパイル時間 | 293 ms |
コンパイル使用メモリ | 12,672 KB |
実行使用メモリ | 12,672 KB |
最終ジャッジ日時 | 2024-09-29 18:45:55 |
合計ジャッジ時間 | 2,684 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 * 4 |
other | AC * 32 |
ソースコード
def main(): N, M = map(int, input().split()) graph = [set() for _ in range(N)] degrees = [0] * N for _ in range(M): A, B = map(lambda n: int(n) - 1, input().split()) graph[A].add(B) graph[B].add(A) removable_edges = set() for idx, neighbors in enumerate(graph): if len(neighbors) != 1: continue for neighbor in neighbors: removable_edges.add((min(idx, neighbor), max(idx, neighbor))) ctr = 0 while removable_edges: cur_edge = removable_edges.pop() graph[cur_edge[0]].remove(cur_edge[1]) graph[cur_edge[1]].remove(cur_edge[0]) ctr += 1 if len(graph[cur_edge[0]]) == 1: for neighbor in graph[cur_edge[0]]: removable_edges.add( (min( cur_edge[0], neighbor), max( cur_edge[0], neighbor))) if len(graph[cur_edge[1]]) == 1: for neighbor in graph[cur_edge[1]]: removable_edges.add( (min( cur_edge[1], neighbor), max( cur_edge[1], neighbor))) if ctr % 2: print("Yes") else: print("No") if __name__ == "__main__": main()