第一题：排个序 AC 第二题：暴力36% from copy import copy def miHomeGiftBag(p, M):     if not p and M == 0:return 1     if len(p)==1 and M == p[0]:return 1     for i in p:         p_ = copy(p);p_.remove(i)         if i == M:return 1         if i>M:return 0         if miHomeGiftBag(p_,M-i):return 1     return 0      n = int(input()) p = [int(i) for i in input().split()] p.sort() M = int(input()) print(miHomeGiftBag(p, M))