Labeling Balls Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 11893 Accepted: 3408 Description Windy has N balls of distinct weights from 1 unit to N units. Now he tries to label them with 1 to N in such a way that: No two balls share the…

Catch That Cow Time Limit: 2000MS   Memory Limit: 65536K Total Submissions: 58072   Accepted: 18061 Description Farmer John has been informed of the location of a fugitive cow and wants to catch her immediately. He starts at a point N (0 ≤ N ≤ 100,00…

Largest Rectangle in a Histogram Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 11706    Accepted Submission(s): 3219 Problem Description A histogram is a polygon composed of a sequence of rec…

#include<cstdio> #include<cstring> using namespace std; bool map[505][505]; int n, k; bool vis[505]; int linker[505]; void sscanf() { int x, y; scanf("%d%d",&n,&k); for(int i=1;i<=k;i++) { scanf("%d%d",&x,&am…

Description Give you three sequences of numbers A, B, C, then we give you a number X. Now you need to calculate if you can find the three numbers Ai, Bj, Ck, which satisfy the formula Ai+Bj+Ck = X. Input There are many cases. Every data case is descr…

上次说到了网络请求AFN,那么我们在网络请求的时候,等待期间,为了让用户不认为是卡死或程序出错,一般都会放一个菊花加载,系统有一个菊花加载类叫UIProgressHUD.但是我今天要说的是一个替代它的第三方,叫做:MBProgressHUD.MBProgressHUD不光加载效果多,而且使用简单,便捷.github上有下载地址 下载地址是: http://github.com/matej/MBProgressHUD 先下载MBProgressHUD.h和.m文件,拖入工程. 以下是代码:(先在.…

文章目录 1. 简介 2. 实验 3. 实战 3.1. 修改 Constraints 3.2. 安装和卸载 Constraints 3.3. 安装和卸载 View 3.4. 其他 4. 后话 以前和安卓的同学聊天的时候,谈到适配一直是一个非常开心的话题,看到他们被各种屏幕适配折磨的欲仙欲死,心里真替他们高兴.不过在做到 iPhone 和 iPad 的适配的时候,一个页面需要配置多个 xib 进行开发还是个很头疼的事情.再加上 iPhone6 和 iPhone6 plus 的发布,适配似乎也变得麻…

(1)DECLARE 两种用法: 1>: DECLARE @usid VARCHAR(50),@usna NVARCHAR(100),@grna NVARCHAR(100); 2>: DECLARE @usid VARCHAR(50) DECLARE @usna NVARCHAR(100) DECLARE @grna NVARCHAR(100) (2)select 1 from mytable select 1 from mytable;(一般是作条件用的) select anycol(目的表…

Description Farmer John is an astounding accounting wizard and has realized he might run out of money to run the farm. He has already calculated and recorded the exact amount of money (1 ≤ moneyi ≤ 10,000) that he will need to spend each day over the…

C. Hard problem time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Vasiliy is fond of solving different tasks. Today he found one he wasn't able to solve himself, so he asks you to help. Vasil…