人生如梦，梦醒时悲欢离合

Ming is going to travel for n days and the date of these days can be represented by n integers: 0, 1, 2, …, n-1. He plans to spend m consecutive days（2 ≤ m ≤ n）in Beijing. During these m days, he inte...

题目链接题意：在一条数轴上从从1～n排列着n座房子，每次必须移动，移动的距离为两点坐标之差的绝对值，问能否在k回合里一共移动s距离。思路：一道略带贪心的思维题，首先把k>s和k*(n-1)#pragma comment(linker, "/STACK:1024000000,1024000000")#include <vector>#includ

To celebrate that WF-2018 will be held in PKU, Alice, Bob, and Cate are asked to make N cakes.Every cake i needs to go through 3 steps in restrict order:Alice mixes flour and water for ai minutes...

You are given a list of integers a0, a1, …, a2^k-1.You need to support two types of queries:Output Minx,y∈[l,r] {ax∙ay}.Let ax=y.InputThe first line is an integer T, indicating the number...

Problem DescriptionThe empire is under attack again. The general of empire is planning to defend his castle. The land can be seen as N towns and M roads, and each road has the same length and connec...

Consider a un-rooted tree T which is not the biological significance of tree or plant, but a tree as an undirected graph in graph theory with n nodes, labelled from 1 to n. If you cannot understand th...

BaoBao and DreamGrid are playing a game using a strange button. This button is attached to an LED light (the light is initially off), a counter and a timer and functions as follows:When the button i...