我故意发灌水区的QAQ
by _Felix @ 2019-10-15 17:43:52
算
by Computer1828 @ 2019-10-15 17:44:44
https://ti.luogu.com.cn/problemset/1021/training
14题
by Computer1828 @ 2019-10-15 17:45:23
@[不进前n不改名](/space/show?uid=106738) 话说子集是什么
by Computer1828 @ 2019-10-15 17:46:26
@[拥抱渴望者](/space/show?uid=114173) 子集包括空集
by _Felix @ 2019-10-15 17:52:24
应该是空集也是子集
by _Felix @ 2019-10-15 17:52:45
应该可以通过看样例来解决
by 神之右大臣 @ 2019-10-15 18:04:43
算
by 江振平 @ 2019-10-15 18:20:36
@[神之右大臣](/space/show?uid=119189) 选择题，初赛！！！
by _Felix @ 2019-10-15 18:38:06