# coding=utf-8 import sys def f2(a, types): n = len(a) max_card = -1 for i in range(len(a)): # 这里可以优化 node = [int(e) for e in str(a[i])] max_card = max(max_card, max(node)) node = set(node) t = 0 for e in node: e = int(e) ...