绝尘

题目链接：http://acm.hdu.edu.cn/showproblem.php?pid=6581题意在一条道路上有n+1n+1n+1辆车，每辆车有自己距离终点的距离sss，自己的车身长度lll和自己的速度vvv。注意所有的车不能超车，只能按照顺序到达终点。问所有的车到达终点所需要的时间。数据按照从远到近的顺序给出。题解这是一个比较有意思的思维题。考虑最远的一辆车。就是编号为0的车。如果在到达终点的期间没有碰到一号车，那么它就是最后一个到达是车，所需要的的时间就是s0v0\frac{s_0}

题意：一共有n种不同的Coupons，每次得到每种Coupons的概率是相同的，问期望多少次得到所有的n种Coupons假设我们已经得到k种Coupons，那么我们得到新的Coupons的概率为n−kn\frac{n-k}{n},所需的期望步数是nn−k\frac{n}{n-k}。求和我们得到总的期望步数nn+nn−1+⋯n1=n×∑i=1n1i\frac{n}{n}+\frac{n}{n-1}+\

HDU【5810】——Balls and BoxesHDU【5813】——Elegant ConstructionHDU【5818】——Joint StacksHDU【5816】——Hearthstone

HDU【5857】——MedianHDU【5858】——Hard problemHDU【5862】——Counting IntersectionsHDU【5867】——Water problem

A. Hulk time limit per test 1 second memory limit per test 256 megabytesDr. Bruce Banner hates his enemies (like others don’t). As we all know, he can barely talk when he turns into the incredi

A. Launch of Collider time limit per test 2 seconds memory limit per test 256 megabytesThere will be a launch of a new, powerful and unusual collider very soon, which located along a straight l

HDU【5734】-Acperience Time Limit: 4000/2000 MS (Java/Others) Memory Limit:65536/65536 K (Java/Others)Problem DescriptionDeep neural networks (DNN) have shown significant improvements in several appl

Time Limit: 2000MS Memory limit: 131072K题目描述Some aliens are learning English. They have a very strange way in writing that they revered every word in the sentence but keep all the words in common order

Time Limit: 2000MS Memory limit: 65536K题目描述Murloc is a powerful race in Hearthstone. In the set League of Explorers, a new Paladin ability card called Anyfin Can Happen is released with the ability to

Time Limit: 2000MS Memory limit: 131072K题目描述Memory Leak is a well-known kind of bug in C/C++. When a string is longer than expected, it will visit the memory of next array which will cause the issue an

Time Limit: 2000MS Memory limit: 131072K题目描述 A Swiss-system tournament is a tournament which uses a non-elimination format. The first tournament of this type was a chess tournament in Zurich in 1895,

题意：两个人玩游戏，每一出的数大的人得一分，现在给你两个出数的顺序，判断第一个人的得分。#include <bits/stdc++.h>using namespace std;class GreaterGameDiv2{ public : int calc(vector <int> snuke, vector <int> sothe) { int sum =

Sudoku Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 15952 Accepted: 7791 Special JudgeDescription Sudoku is a very simple task. A square table with 9 rows and 9 column