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Description TT and FF are ... friends. Uh... very very good friends ________ b FF is a bad boy, he is always wooing TT to play the following game with 阅读全文
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cf上一道题,不知道前缀和怎么也找不到做法。 其实是二分检查时用到前缀和,代码如下: c++ include include include include include include include using namespace std; typedef long long ll; cons 阅读全文
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Description Mr.Dog was fired by his company. In order to support his family, he must find a new job as soon as possible. Nowadays, It's hard to have a 阅读全文