qq_51690312的博客

0与3：为奇偶性。异或与加法的混合。

map技巧，异或值大小，异或值比较，快速遍历求异或值大小——tire树（模板），提取某位数，集合

贪心，用二进制求大体上每位0和1个数连加可以看整体

异或的遍历

Theofanis really likes sequences of positive integers, thus his teacher (Yeltsa Kcir) gave him a problem about a sequence that consists of only special numbers.Let's call a positive numberspecialif it can be written as a sum ofdifferentnon-negative p...