英文原文: http://corner.squareup.com/2013/07/reversing-bits-on-arm.html 本文讲解翻转bit位的一些方法,例如如何将1001 1101变为1011 1001. 另参考:http://www.cnblogs.com/xueda120/p/3151354.html 此外可以参考强大的位操作方法:http://stackoverflow.com/questions/746171/best-algorithm-for-bit-reversal…

Everyone knows that STM32F1xx, STM32F2xx, STM32F4xx have a hardware unit with a polynomial CRC32 0x04C11DB7. And he, in general, work. But only a checksum for some reason does not coincide with that calculated softvarno. The Google usually 2 types of…

Assembler : The Basics In Reversing Indeed: the basics!! This is all far from complete but covers about everything you need to know about assembler to start on your reversing journey! Assembler is the start and the end of all programming languages. A…

7-2 Block Reversing (25分)   Given a singly linked list L. Let us consider every K nodes as a block (if there are less than K nodes at the end of the list, the rest of the nodes are still considered as a block). Your job is to reverse all the blocks i…

1074 Reversing Linked List (25 分)   Given a constant K and a singly linked list L, you are supposed to reverse the links of every K elements on L. For example, given L being 1→2→3→4→5→6, if K=3, then you must output 3→2→1→6→5→4; if K=4, you must outp…

B - Reversing Encryption A string s of length n can be encrypted by the following algorithm: iterate over all divisors of n in decreasing order (i.e. from n to 1), for each divisor d, reverse the substring s[1-d] (i.e. the substring which starts at p…

Bits Reverse 题目链接 题目描述 Now given two integers x and y, you can reverse every consecutive three bits in arbitrary number's binary form (any leading zero can be taken into account) using one coin. Reversing (1,2,3) means changing it into (3,2,1). Could…

传送门 题目描述 Now given two integers x and y, you can reverse every consecutive three bits ,,) means changing it into (,,). Could you please find a way that minimize number of coins so that x = y? If you can, just output the minimum coins you need to use.…

02-线性结构3 Reversing Linked List   (25分) 时间限制:400ms 内存限制:64MB 代码长度限制:16kB 判题程序:系统默认 作者:陈越 单位:浙江大学 https://pta.patest.cn/pta/test/3512/exam/4/question/62614 Given a constant KKK and a singly linked list LLL, you are supposed to reverse the links of ever…

Write a function that takes an unsigned integer and returns the number of ’1' bits it has (also known as the Hamming weight). For example, the 32-bit integer ’11' has binary representation 00000000000000000000000000001011, so the function should retu…