题目背景 Samcompu拥有大量的"水"资源!! 题目描述 Samcompu需要制定一个水计划.这个计划的主要目的就是为了避开老师监视的时间来水. 老师在中途会离开机房T次,第i次将会离开tim_i秒.Samcompu划水的时候可不是随便乱水的.他可是拥有"水"资源的.在他的库存中有N个可以水的网站.Samcompu拥有一种黑科技,他可以几乎不耗任何时间在网站与网站之间跳转并且把跳转的网页的信息秒存.也就是说,Samcompu并不需要在每一次跳转的时候花费时间去浏…

点此进入比赛 T1: JerryC Loves Driving 第一题应该就是一道水分题(然而我只水了130分),我的主要做法就是暴力模拟,再做一些小小的优化(蠢得我自己都不想说了). My Code: #include<bits/stdc++.h> using namespace std; int a,b,ans; void read(int &x){ char ch; bool ok; for(ok=0,ch=getchar(); !isdigit(ch); ch=getchar(…

这场比赛是前几天洛谷上 暮雪﹃紛紛dalao的个人公开赛,当时基本上都在水暴力分......也没有好好写正解(可能除了T1) 过了几天颓废的日子之后,本蒟蒻觉得应该卓越一下了qwq,所以就打算写一个解题报告qwq(其实就是详细注释啦~~~) T1 JerryC Loves Driving(数学) 首先T1已经给我们简化了,(我才不会告诉你前面的题目我都没看呢) 题目要求:给出A,B,求出下面式子的值-- \(\sum_{i=A}^B \sum_{j=1}^i \lfloor\frac{i}{j}…

微软新任CEO纳德拉提出的“Microsoft Loves Linux”,并且微软宣布.NET框架的开源,近期Microsoft不但宣布了Linux平台的SQL Server,还宣布了Microsoft将重新建立对开源软件的支持,包括对Xamarin的收购,以及加入Eclipse基金会. SQL Server将会在 Linux上提供核心关系型数据库功能,旨在让SQL Server成为横跨Windows服务器和Linux的数据平台.目前有很多使用Linux但希望使用MS SQL Server的企业…

Given an m x n matrix of non-negative integers representing the height of each unit cell in a continent, the "Pacific ocean" touches the left and top edges of the matrix and the "Atlantic ocean" touches the right and bottom edges. Wate…

Given an m x n matrix of positive integers representing the height of each unit cell in a 2D elevation map, compute the volume of water it is able to trap after raining. Note: Both m and n are less than 110. The height of each unit cell is greater th…

You are given two jugs with capacities x and y litres. There is an infinite amount of water supply available. You need to determine whether it is possible to measure exactly z litres using these two jugs. If z liters of water is measurable, you must…

Given n non-negative integers representing an elevation map where the width of each bar is 1, compute how much water it is able to trap after raining. For example, Given [0,1,0,2,1,0,1,3,2,1,2,1], return 6. The above elevation map is represented by a…

Given n non-negative integers a1, a2, ..., an, where each represents a point at coordinate (i, ai). n vertical lines are drawn such that the two endpoints of line i is at (i, ai) and (i, 0). Find two lines, which together with x-axis forms a containe…

炎炎夏日,还是呆在空调房里切切题吧. Container With Most Water,题意其实有点噱头,简化下就是,给一个数组,恩,就叫 height 吧,从中任选两项 i 和 j(i <= j),使得 Math.min(height[i], height[j]) * (j - i) 最大化,求解这个最大值. O(n^2) O(n^2) 复杂度的解法非常容易想到,直接两两枚举. var maxArea = function(height) { var len = height.length;…

传送门 NanoApe Loves Sequence Ⅱ Time Limit: 4000/2000 MS (Java/Others)    Memory Limit: 262144/131072 K (Java/Others)Total Submission(s): 1585    Accepted Submission(s): 688 Description NanoApe, the Retired Dog, has returned back to prepare for for the…

传送门 NanoApe Loves Sequence Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 262144/131072 K (Java/Others) Total Submission(s): 1323    Accepted Submission(s): 521 Description NanoApe, the Retired Dog, has returned back to prepare for the Natio…

题目描述: Given n non-negative integers a1, a2, ..., an, where each represents a point at coordinate (i, ai). n vertical lines are drawn such that the two endpoints of line i is at (i, ai) and (i, 0). Find two lines, which together with x-axis forms a co…

Given n non-negative integers representing an elevation map where the width of each bar is 1, compute how much water it is able to trap after raining. Have you met this question in a real interview? Yes Example Given [0,1,0,2,1,0,1,3,2,1,2,1], return…

Given n non-negative integers a1, a2, ..., an, where each represents a point at coordinate (i, ai). n vertical lines are drawn such that the two endpoints of line i is at (i, ai) and (i, 0). Find two lines, which together with x-axis forms a containe…

问题描述 Given n non-negative integers a1, a2, ..., an, where each represents a point at coordinate (i, ai). n vertical lines are drawn such that the two endpoints of line i is at (i, ai) and (i, 0). Find two lines, which together with x-axis forms a con…

C. DZY Loves Colors time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output DZY loves colors, and he enjoys painting. On a colorful day, DZY gets a colorful ribbon, which consists of n units (they…

题目 Source http://codeforces.com/problemset/problem/444/C Description DZY loves colors, and he enjoys painting. On a colorful day, DZY gets a colorful ribbon, which consists of n units (they are numbered from 1 to n from left to right). The color of t…

A. DZY Loves Chessboard time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output DZY loves chessboard, and he enjoys playing with it. He has a chessboard of n rows and m columns. Some cells of the c…

Given n non-negative integers representing an elevation map where the width of each bar is 1, compute how much water it is able to trap after raining. For example, Given [0,1,0,2,1,0,1,3,2,1,2,1], return 6. The above elevation map is represented by a…

“You couldn’t see my tears cause I am in the water.“ Fish said to water.“But I could feel your tears cause you are in my heart..“ Answered water. 鱼对水说你看不到我的眼泪,因为我在水里．水说我能感觉到你的眼泪,因为你在我心里.…

Given n non-negative integers a1, a2, ..., an, where each represents a point at coordinate (i, ai). n vertical lines are drawn such that the two endpoints of line i is at (i, ai) and (i, 0). Find two lines, which together with x-axis forms a containe…

A.Kblack loves flag [题目链接]A.Kblack loves flag [题目类型]水题 &题意: kblack喜欢旗帜(flag),他的口袋里有无穷无尽的旗帜. 某天,kblack得到了一个n*m的方格棋盘,他决定把kk面旗帜插到棋盘上. 每面旗帜的位置都由一个整数对(x,y)来描述,表示该旗帜被插在了第x行第y列. 插完旗帜后,kblack突然对那些没有插过旗帜的行和列很不满,于是他想知道,有多少行.列上所有格子都没有被插过旗帜. kblack还要把妹,于是就把这个问题丢…

Given n non-negative integers representing an elevation map where the width of each bar is 1, compute how much water it is able to trap after raining. For example, Given [0,1,0,2,1,0,1,3,2,1,2,1], return 6. The above elevation map is represented by a…

CA Loves GCD  Accepts: 135  Submissions: 586  Time Limit: 6000/3000 MS (Java/Others)  Memory Limit: 262144/262144 K (Java/Others) 问题描述 CA喜欢是一个热爱党和人民的优秀同♂志,所以他也非常喜欢GCD(请在输入法中输入GCD得到CA喜欢GCD的原因). 现在他有N个不同的数,每次他会从中选出若干个(至少一个数),求出所有数的GCD然后放回去. 为了使自己不会无聊,C…

Given n non-negative integers representing an elevation map where the width of each bar is 1, compute how much water it is able to trap after raining. For example, Given [0,1,0,2,1,0,1,3,2,1,2,1], return 6. 我做题,一般是按照AC率排序选着做的,这道题一不留神,难度居然还是Hard,好吧,确实…

Dylans loves tree view code#pragma comment(linker, "/STACK:1024000000,1024000000") #include <iostream> #include <algorithm> #include <cstdio> #include <cstring> #include <vector> #include <queue> #include <…

NanoApe Loves Sequence Ⅱ  Accepts: 374  Submissions: 946  Time Limit: 4000/2000 MS (Java/Others)  Memory Limit: 262144/131072 K (Java/Others) 问题描述 退役狗 NanoApe 滚回去学文化课啦! 在数学课上,NanoApe 心痒痒又玩起了数列.他在纸上随便写了一个长度为 nn 的数列,他又根据心情写下了一个数 mm. 他想知道这个数列中有多少个区间里的第…

3309: DZY Loves Math Time Limit: 20 Sec  Memory Limit: 512 MBSubmit: 761  Solved: 401[Submit][Status][Discuss] Description 对于正整数n,定义f(n)为n所含质因子的最大幂指数.例如f(1960)=f(2^3 * 5^1 * 7^2)=3, f(10007)=1, f(1)=0.给定正整数a,b,求sigma(sigma(f(gcd(i,j)))) (i=1..a, j=1.…

#include <iostream> #include <cstdio> #include <cstring> #include <cmath> #include <algorithm> using namespace std; #define PI pair<int,int> #define fi first #define se second #define mp(a,b) make_pair(a,b) #define maxn…