摘要：Save the Nature 题意： 在第n * a张卖掉的电影票能够提供x%的收益 在第n * b张卖掉的电影票能够提供y%的收益 问收益为k时，最少需要卖多少张电影票 思路： 二分一下答案就好了 1 #include<cstdio> 2 #include<cstring> 3 #include 阅读全文

摘要：Recently Luba bought a monitor. Monitor is a rectangular matrix of size n × m. But then she started to notice that some pixels cease to work properly. 阅读全文

摘要：Magazine Ad The main city magazine offers its readers an opportunity to publish their ads. The format of the ad should be like this: There are space-s 阅读全文