코드 # 유니온 파인드 이용 def find(a, lst): if a != lst[a]: find(lst[a], lst) return lst[a] def union(a,b,lst): a = find(a,lst) b = find(b,lst) import sys sys.setrecursionlimit(10**5) input = sys.stdin.readline def find(a, lst): if a != lst[a]: lst[a] = find(lst[a],lst) return lst[a] def union(a,b,lst): a = find(a,lst) b = find(b,lst) if a < b: lst[b] = a else: lst[a] = b airport = int(input()) gate = [i ..
