qq_35117637的博客

Because of the wrong status of the bicycle, Sempr begin to walk east to west every morning and walk back every evening. Walking may cause a little tired, so Sempr always play some games this time

Can you solve this equation? Now,given the equation 8*x^4 + 7*x^3 + 2*x^2 + 3*x + 6 == Y,can you find its solution between 0 and 100; Now please try your lucky.

折线分割平面 我们看到过很多直线分割平面的题目，今天的这个题目稍微有些变化，我们要求的是n条折线分割平面的最大数目。比如，一条折线可以将平面分成两部分，两条折线最多可以将平面分成7部分，具体如下所示。

展开字符串：在纺织CAD系统开发过程中，经常会遇到纱线排列的问题。 该问题的描述是这样的：常用纱线的品种一般不会超过25种，所以分别可以用小写字母表示不同的纱线，例如：abc表示三根纱线的排列；重复可以用数字和括号表示，例如：2(abc)表示abcabc；1(a)=1a表示a;2ab表示aab;如果括号前面没有表示重复的数字出现，则就可认为是1被省略了，如：cd(abc)=

SquareDescription：Given a set of sticks of various lengths, is it possible to join them end-to-end to form a square?InputThe first line of input contains N, the number of test cases. Each test case beg

Treedescription：There are N (2<=N<=600) cities,each has a value of happiness,we consider two cities A and B whose value of happiness are VA and VB,if VA is a prime number,or VB is a prime number or (VA