BlackJack

3382: [Usaco2004 Open]Cave Cows 3 洞穴里的牛之三Time Limit: 1 Sec  Memory Limit: 128 MBSubmit: 86  Solved: 70[Submit][Status][Discuss]Description    约翰的N(1≤N≤50000)只牛在一个黑魃魃的洞里探险．他们只能通过叫声交流．

2177: 曼哈顿最小生成树Time Limit: 10 Sec  Memory Limit: 259 MBSubmit: 281  Solved: 117[Submit][Status][Discuss]Description平面坐标系xOy内，给定n个顶点V = (x , y)。对于顶点u、v，u与v之间的距离d定义为|xu – xv| + |yu – yv| 你的

Rotating ScoreboardTime Limit: 2000MS Memory Limit: 65536KTotal Submissions: 7505 Accepted: 3008DescriptionThis year, ACM/ICPC World finals will be held in a hall in form of a simple polygon. The coac...

How I Mathematician Wonder What You Are!Time Limit: 5000MS Memory Limit: 65536KTotal Submissions: 4073 Accepted: 2194DescriptionAfter counting so many stars in the sky in his childhood, Isaac, now an ...

EllipseTime Limit: 1000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 2546    Accepted Submission(s): 1146Problem DescriptionMath is important!! Many students ...

Uyuw's ConcertTime Limit: 6000MS Memory Limit: 65536KTotal Submissions: 10717 Accepted: 3885DescriptionPrince Remmarguts solved the CHESS puzzle successfully. As an award, Uyuw planned to hold a conce...

Most Distant Point from the SeaTime Limit: 5000MS Memory Limit: 65536KTotal Submissions: 5740 Accepted: 2549 Special JudgeDescriptionThe main land of Japan called Honshu is an island surrounded by the...

A Round Peg in a Ground HoleTime Limit: 1000MS Memory Limit: 10000KTotal Submissions: 7250 Accepted: 2361DescriptionThe DIY Furniture company specializes in assemble-it-yourself furniture kits. Typica...

1043: [HAOI2008]下落的圆盘Time Limit: 10 Sec  Memory Limit: 162 MBSubmit: 1656  Solved: 704[Submit][Status][Discuss]Description　　有n个圆盘从天而降，后面落下的可以盖住前面的。求最后形成的封闭区域的周长。看下面这副图, 所有的红色线条的总长度即为所求. Input　　第一行为1个整...

Feng ShuiTime Limit: 2000MS Memory Limit: 65536KTotal Submissions: 6095 Accepted: 1832 Special JudgeDescriptionFeng shui is the ancient Chinese practice of placement and arrangement of space to achiev...

1502: [NOI2005]月下柠檬树Time Limit: 5 Sec  Memory Limit: 64 MBSubmit: 1244  Solved: 662[Submit][Status][Discuss]DescriptionInput文件的第1行包含一个整数n和一个实数alpha，表示柠檬树的层数和月亮的光线与地面夹角(单位为弧度)。第2行包含

Area of Simple PolygonsTime Limit: 1000MS Memory Limit: 65536KTotal Submissions: 3694 Accepted: 1914DescriptionThere are N, 1 <= N <= 1,000 rectangles in the 2-

1604: [Usaco2008 Open]Cow Neighborhoods 奶牛的邻居Time Limit: 5 Sec  Memory Limit: 64 MBSubmit: 1131  Solved: 463[Submit][Status][Discuss]Description了解奶牛们的人都知道，奶牛喜欢成群结队．观察约翰的N(1≤N≤100000)只奶牛，你会

TOYSTime Limit: 2000MS Memory Limit: 65536KTotal Submissions: 16481 Accepted: 7903DescriptionCalculate the number of toys that land in each bin of a partitioned

SegmentsTime Limit: 1000MS Memory Limit: 65536KTotal Submissions: 15648 Accepted: 4971DescriptionGiven n segments in the two dimensional space, write a program,

3170: [Tjoi 2013]松鼠聚会Time Limit: 10 Sec  Memory Limit: 128 MBSubmit: 1343  Solved: 679[Submit][Status][Discuss]Description有N个小松鼠，它们的家用一个点x,y表示，两个点的距离定义为：点(x,y)和它周围的8个点即上下左右四个点和对角的四个点，距离为1。

Bridge Across IslandsTime Limit: 1000MS Memory Limit: 65536KTotal Submissions: 11382 Accepted: 3346 Special JudgeDescriptionThousands of thousands years ago there was a small kingdom located in the mi...

Beauty ContestTime Limit: 3000MS Memory Limit: 65536KTotal Submissions: 39341 Accepted: 12207DescriptionBessie, Farmer John's prize cow, has just won first plac

1670: [Usaco2006 Oct]Building the Moat护城河的挖掘Time Limit: 3 Sec  Memory Limit: 64 MBSubmit: 545  Solved: 403[Submit][Status][Discuss]Description为了防止口渴的食蚁兽进入他的农场，Farmer John决定在他的农场周围挖一条护城河。农场

1069: [SCOI2007]最大土地面积Time Limit: 1 Sec  Memory Limit: 128 MBSubmit: 3680  Solved: 1460[Submit][Status][Discuss]Description　　在某块平面土地上有N个点，你可以选择其中的任意四个点，将这片土地围起来，当然，你希望这四个点围成的多边形面积最大。Input　　第1行一个正整数N，接...

2178: 圆的面积并Time Limit: 20 Sec  Memory Limit: 259 MBSubmit: 2208  Solved: 561[Submit][Status][Discuss]Description给出N个圆，求其面积并Input先给一个数字N ,NOutput面积并，保留三位小数Sample Input721

2618: [Cqoi2006]凸多边形Time Limit: 5 Sec  Memory Limit: 128 MBSubmit: 2141  Solved: 1051[Submit][Status][Discuss]Description逆时针给出n个凸多边形的顶点坐标，求它们交的面积。例如n=2时，两个凸多边形如下图：则相交部分的面积为5.233。Input第一行有一个整数n，表示凸多边形的...