摘要:
Given a list of phone numbers, determine if it is consistent in the sense that no number is the prefix of another. Let's say the phone... 阅读全文
摘要:
G - Vitya and Strange LessonCodeForces - 842D 题意:给你一个数组,让数组里面的值都异或一下x,并构成一个新的数组,求这个数组的mexmex的含义:不在数组中的最小正整数。思路:异或的交换律1.首先我们知道,异或x... 阅读全文