그랬었습니다

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 import sys input = sys.stdin.readline n, m = map(int, input().split()) parent = [i for i in range(n + 1)] edges = list() def find_parent(c): if parent[c] != c: parent[c] = find_parent(parent[c]) return parent[c] def union(a, b): ap, bp = find_parent(a), find_parent(b) if ap