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本文主要参考《unix环境高级编程》sigaction函数的功能是检查或修改与指定信号相关联的处理动作（可同时两种操作）。intsigaction(intsigno,conststructsigaction*restrict act,structsigaction*restrict oact);结构... 阅读全文
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Given an absolute path for a file (Unix-style), simplify it.For example,path="/home/", =>"/home"path="/a/./b/../../c/", =>"/c"click to show corner cas... 阅读全文
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You are climbing a stair case. It takesnsteps to reach to the top.Each time you can either climb 1 or 2 steps. In how many distinct ways can you climb... 阅读全文
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Implementint sqrt(int x).Compute and return the square root ofx.Hide TagsMathBinary Search思路：整体上用2分比逐个比较强。首先，给出一个错误的版本：错误之处在于红色部分，当mid较大时，mid*mid会超过IN... 阅读全文
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Given an array of words and a lengthL, format the text such that each line has exactlyLcharacters and is fully (left and right) justified.You should p... 阅读全文