摘要：
转载 两圆相交分如下集中情况：相离、相切、相交、包含。 设两圆圆心分别是O1和O2，半径分别是r1和r2，设d为两圆心距离。又因为两圆有大有小，我们设较小的圆是O1。 相离相切的面积为零，代码如下： [cpp] view plain copy print? double d = sqrt((a.x- 阅读全文
摘要：
Muddy Fields Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 10961 Accepted: 4071 Description Rain has pummeled the cows' field, a rectangu 阅读全文
摘要：
Treasure Exploration Time Limit: 6000MS Memory Limit: 65536K Total Submissions: 8909 Accepted: 3644 Description Have you ever read any book about trea 阅读全文
摘要：
King's Quest Time Limit: 15000MS Memory Limit: 65536K Total Submissions: 9460 Accepted: 3497 Case Time Limit: 2000MS Description Once upon a time ther 阅读全文
摘要：
Sorting Slides Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 4777 Accepted: 1867 Description Professor Clumsey is going to give an import 阅读全文
摘要：
Intervals Time Limit: 5000MS Memory Limit: 65536K Total Submissions: 8587 Accepted: 3662 Description You are given N weighted open intervals. The ith 阅读全文
摘要：
E. Fire time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output E. Fire time limit per test 2 se 阅读全文
摘要：
D. Make a Permutation! time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output D. Make a Permuta 阅读全文
摘要：
Atlantis Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 14378 Accepted Submission(s): 5931 Probl 阅读全文
摘要：
Three circles CaC_{a}Ca, CbC_{b}Cb, and CcC_{c}Cc, all with radius RRR and tangent to each other, are located in two-dimensional space as sho 阅读全文