题目描述:
Janusz works in roller coaster maintenance. The station of the roller coaster is a long straight segment of railroad tracks. There are some cars on those tracks. The cars are currently not attached to each other, and there may ...
Topcoder SRM(Single Round Match)是由Topcoder公司定期主持的一项线上算法竞赛。
Janusz works in roller coaster maintenance. The station of the roller coaster is a long straight segment of railroad tracks. There are some cars on those tracks. The cars are currently not attached to each other, and there may ...
Topcoder Single Round Match 561
Problem Statement
You are organizing a subregional ACM ICPC contest. The problemset at the contest will consist of M problems. According to an ACM ICPC tradition, when a team solves a problem, it gets awarded ...
Topcoder Single Round Match 568
Problem Statement
There are N boxes numbered from 0 to N-1, inclusive. For each i, box i contains red[i] red balls, green[i] green balls, and blue[i] blue balls.
Fox Ciel wants to ...
喜欢做Topcoder Single Round Match的Pythoners可能已经发现,Topcoder Arena已经允许参赛者使用Python完成SRM的题目了。
然而,在享受用Python做题带来的快乐感受时,有一点可能需要引起Pythoner们注意:
并非所有的SRM题目都保证一定可以用Python来完成,这很大程度上要归咎于Python竞赛引擎的效率问题。
在算法时间复杂度一定的前提下,使用C/C++甚至Java实现的程序执行效率要优于Python。
因此,在完成SRM的题目时,如果对于时间复杂度的要求较高时使用Python需谨慎,此时转而使用C++或者Java来完成或许是更好的选择。
笔者在参加SRM606时,尝试使用Python解答div2的500分题目,代码如下,在challenge阶段被同房间的选手挑战成功了。
系统测试完毕后,通过观察Divion Summary,笔者惊讶的发现使用Python解答500pts的选手中竟无一人通过系统测试,下面是div2 500pts的题目描述及解答:
Marco has a string S composed of lowercase letters. You ...