1072 開學寄語 （20 分） python

N,M = map(int, input().split(" ")) list1 = input().split(" ") dict1 = {} people = 0 things = 0 for i in range(N): ipt_list = input().split(" ") for j in ipt_list[2:] : if j in list1 an

>>阅读原文<<