题解 | #记票统计#
记票统计
https://www.nowcoder.com/practice/3350d379a5d44054b219de7af6708894
n = int(input()) ls = list(input().split()) m = int(input()) ld = list(input().split()) d = {} c = 0 for i in ls: if i not in d: c += ld.count(i) print(i+' : '+str(ld.count(i))) print("Invalid : "+str(m-c))