Lottery CodeForces - 589I Today Berland holds a lottery with a prize — a huge sum of money! There are kpersons, who attend the lottery. Each of them will receive a unique integer from 1 to k. The organizers bought n balls to organize the lottery, eac
Problem Description DouBiXp has a girlfriend named DouBiNan.One day they felt very boring and decided to play some games. The rule of this game is as following. There are k balls on the desk. Every ball has a value and the value of ith (i=1,2,...,k) ball
题目链接：https://vjudge.net/problem/UVA-679 题目大意：t组样例，每组包括D M 层数是D 问第M个小球落在哪个叶子节点？ 每个节点有开关 刚开始全都是关闭的，小球走到节点 节点开关变为与当前相反 每个小球从根节点释放 思路：这题是第一道二叉树遍历的题目，二叉树
