life_as_dream——sagittarius_fjz

题目大意 有nnn个数，a1,a2,⋯ ,ana_1,a_2,\cdots,a_na1​,a2​,⋯,an​，求min((ai or aj) xor (ai and aj))(i≠j)min((a_i\ or\ a_j)\ xor\ (a_i\ and\ a_j))(i\neq j)min((ai​ or aj​)&n...

题目链接 Codeforces 1292C Xenon’s Attack on the Gangs 题目大意 给定一棵树，将[0,n−2][0,n-2][0,n−2]内的每个整数都仅用一遍填到每条边上，使得∑1≤u≤v≤nmex(u,v)\sum_{1\leq u\leq v\leq n}mex(u,v)∑1≤u≤v≤n​mex(u,v)最大，mex(u,v)mex(u,v)mex(u,v)表示从...

The game “The Pilots Brothers: following the stripy elephant” has a quest where a player needs to open a refrigerator. There are 16 handles on the refrigerator door. Every handle can be in one of two ...