题目链接:http://codeforces.com/contest/667/problem/A 题意:一个杯子里有水,一个人在喝并且同时在往里倒.问这个人能不能喝完,多久能喝完. 把相关变量都量化成高度来做简单. /* ┓┏┓┏┓┃キリキリ♂ mind! ┛┗┛┗┛┃＼○/ ┓┏┓┏┓┃ / ┛┗┛┗┛┃ノ) ┓┏┓┏┓┃ ┛┗┛┗┛┃ ┓┏┓┏┓┃ ┛┗┛┗┛┃ ┓┏┓┏┓┃ ┛┗┛┗┛┃ ┓┏┓┏┓┃ ┃┃┃┃┃┃ ┻┻┻┻┻┻ */ #include <algorithm> #incl…

WisKey的眼神 Time Limit: 1000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 2059    Accepted Submission(s): 625 Problem Description WisKey的眼镜有500多度,所以眼神不大好,而且他有个习惯,就是走路喜欢看着地(不是为了拣钱哦^_^),所以大家下次碰见他的时候最好主动打下招呼,呵呵.但是…

Lifting the Stone Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 5203    Accepted Submission(s): 2155 Problem Description There are many secret openings in the floor which are covered by a big…

A. Pouring Rain time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output A lot of people in Berland hates rain, but you do not. Rain pacifies, puts your thoughts in order. By these years you have de…

题目链接: A. Pouring Rain time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output A lot of people in Berland hates rain, but you do not. Rain pacifies, puts your thoughts in order. By these years you h…

 FZU 2110  Star Time Limit:1000MS     Memory Limit:32768KB     64bit IO Format:%I64d & %I64u  Practice Description Overpower often go to the playground with classmates. They play and chat on the playground. One day, there are a lot of stars in the sk…

GCC Time Limit: 1000MS Memory limit: 65536K 题目描述 The GNU Compiler Collection (usually shortened to GCC) is a compiler system produced by the GNU Project supporting various programming languages.  But it doesn’t contains the math operator “!”. In math…

The area Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 6524    Accepted Submission(s): 4578题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=1071 Problem Description Ignatius bought a land last w…

题目链接:http://lightoj.com/volume_showproblem.php?problem=1385 题意:下图中已知面积 a b c 求 d; 如果d的面积不确定,输出-1. 连接AX,记△AFX的面积为m,△AEX的面积为n. 因为△AFX与△BFX共高线,所以m/a = AF/FB; 又因为(n+c)与b共底边,高线所在的三角形相似,高线只比为AF/FB = (n+c)/b = m/a. 同理可得(m+a)/b = n/c = AE/CE 然后解二元一次方程组求得 m =…

描述 9月10日教师节,也是YuYu的生日,妈妈给YuYu准备了一个很大的圆形蛋糕,YuYu看中了蛋糕中间那诱人的樱桃(都挤到一块啦),小家伙很高兴,心里开始盘算着如何将樱桃全部分给自己.YuYu是个“孝顺”的孩子,汗~~,每次自己不喜欢吃的都是很客气的多分点给爸妈吃,而且一定要事先尝一下(生怕爸妈吃到嘴里烫着O(∩_∩)O哈哈~),因此她开始很积极的分蛋糕了.为了简化问题,我们假设所有的樱桃合起来半径为0,即不考虑其大小.现在家里有4个人,除了一家3口,还有朋友的孩子Ayao.YuYu先在蛋糕…