First, the result of the operation of the flag 1, carry Mark CF (Carry flag)The carry flag CF is mainly used to reflect whether the operation produces rounding or borrow. If the highest bit of the result of the operation produces a carry or borrow, its value is 1, otherwise its value is 0.The use of this flag bit is: the addition and subtraction of the number of characters (bytes), the size of the unsigned number comparison operation, the shift operation, the word (byte) between the shift, speci
Reverse bits of a given the unsigned integer.For example, given input 43261596 (represented in binary as 00000010100101000001111010011100), return 964176192 (represent Ed in binary as 00111001011110000010100101000000).Follow up:If This function is called many times, what would you optimize it?Solution:Basically, this code is just keeping pops the last bit from N and push it to the end of the return result.Do? Get last bit from n? Push the bit to the e
that the first bit is 1; If 0 indicates that the I bit is 0 // gets the value of the first bit of the integer num Private Static boolean getbit (intint i) { return (Num (1 // True indicates that the first bit is 1, otherwise 0 }1 left I bit, get a number, this number is only the first I bit 1, the other bits are 0Num with this number, the result is either 0, or not 0. The result is a non-0 indicating that the I bit is 1, and the
LeetCode-Reverse Bits, 1 Bit and number binary correlation
Reverse bits of a given 32 bits unsigned integer.
For example, given input 43261596 (represented in binary as 00000010100101000001111010011100), return 964176192 (represented in binary as0011100101111000001010010000000 ).The simple method is to traverse it, but this method is very inefficient and seems t
The c ++ container has a bitset object, but I think the biggest problem is that the definition must specify the constant size, for example
Bitset
Unable to implement
Int n = 3;
Bitset
So I checked some information and implemented the Bits that can be defined with variables.
Class Bits{Public:Bits (int numOfBits );Virtual ~ Bits ();Bool Set (int arg );Bool
and the result of 1 indicate that the first bit is 1; If 0 indicates that the I bit is 0 Gets the value of the I-bit of the integer num private static Boolean getbit (int num, int i) { return (num (1 1 left I bit, get a number, this number is only the first I bit 1, the other bits are 0Num with this number, the result is either 0, or not 0. The result is a non-0 indicating that the I bit is 1, and the result is 0 that the I bit is 0T
Recently participated in a programming competition, there is a few question bank, this topic is one of them.Of course, if you want to exercise your programming level, you can go to Lintcode or other websites to brush the problem.I was so confident that it took me one hours to write it down, and I was ashamed.It was implemented using string, after all, it was programmed with C + +. Without thinking how to write, there is no use.Title Description:
Given 2 positive integers a, b,a and B ca
Bit: bit, the most basic unit in the computer. A 0 or a 1 is one.
Bytes: 8 bits is one byte.
Word: The word consists of several bits. There are machine word length, storage word length, instruction word length, data word length and so on.
Machine word length refers to the number of bits that the CPU can process data at a time, usually related to the number of
The friend who prepares to go to graduate examination today asks me a question: The CPU has 20 address lines and 32 data lines, ask what is the range of byte addressing and word addressing respectively.
At first thought, a word of 4 bytes, one address 2^20 word, that is, one address 2^22 bytes. was sent to him.
But he told me that the Tian Qin forum in the examination note that the address 2^20 byte, that is, a 2^18 word.
At that time I wondered, how can I be so careless (hahaha ~ ~). But s
It's been about two months since Google released the official version of Android Studio 1.0. Having been accustomed to using the Eclipse+adt model, and having tried the Android Studio preview in Windows, I felt that the card was not working, and it was temporarily shelved. Today, it's a whim to know if using Android Studio under Linux will be smoother than Windows. Here are the basic building processes, as well as some of the problems encountered:first, the installation of files1.ubuntu 14.10 LT
Topic linkshttps://leetcode.com/problems/reverse-bits/Original title
Reverse bits of a given the unsigned integer.
For example, given input 43261596 (represented in binary as 00000010100101000001111010011100), return 964176192 (represent Ed in binary as 00111001011110000010100101000000).
Follow up:If This function is called many times, what would you optimize it?
Topic translationFlips
This article mainly introduces the content is about PHP two decimal places, has a certain reference value, now share to everyone, the need for friends can refer to
Recently in doing statistics this piece of content, contact about the number of data more,
Three functions are used to keep the decimal number after N bits, and then a simple introduction to three functions:
1, Number_format
Echo Number_format ("5000000"). "
This function is mainly implem
Recently in doing statistics this piece of content, contact about the number of data more,Three functions are used to keep the decimal number after N bits, and then a simple introduction to three functions:1, Number_formatEcho Number_format ("5000000"). " ; Echo Number_format ("5000000", 2). " ; Echo Number_format ("5000000", 2, ",", ".");This function is mainly implemented by: Thousands of bits are grouped
Title Description:Reverse bits of a given the unsigned integer.For example, given input 43261596 (represented in binary as 00000010100101000001111010011100), return 964176192 (represent Ed in binary as00111001011110000010100101000000).Follow up:If This function is called many times, what would you optimize it?Ideas:The main research bit operation1.result=0,result=result + the number and 1 to do bits and ari
Topic Connectionhttps://leetcode.com/problems/reverse-bits/Reverse bitsdescriptionReverse bits of a given the unsigned integer.For example, given input 43261596 (represented in binary as 00000010100101000001111010011100), return 964176192 (represent Ed in binary as 00111001011110000010100101000000).Class solution (Object): def reversebits (self, N): j = 0 s = " ans = 0 while n > 0: s = s +
Title:
Number of 1 Bits
Pass Rate:
40%
Difficulty:
Simple
Write a function that takes an unsigned integer and returns the number of ' 1 ' bits it has (also known as the Hamming weigh T).For example, the 32-bit integer ' One ' 00000000000000000000000000001011 has a binary representation, so the function should return 3.Credits:Special thanks to @ts for
Title:
Reverse Bits
Pass Rate:
27.6%
Difficulty:
Simple
Reverse bits of a given the unsigned integer.For example, given input 43261596 (represented in binary as 00000010100101000001111010011100), return 964176192 (represent Ed in binary as00111001011110000010100101000000).Follow up:If This function is called many times, what would you optimize it?Relat
191. Number of 1 Bits
Total accepted:103908
Total submissions:275693
Difficulty:easy
Write a function that takes an unsigned integer and returns the number of ' 1 ' bits it has (also known as the Hamming weigh T).For example, the 32-bit integer ' One ' 00000000000000000000000000001011 has a binary representation, so the function should return 3.Ideas:Method one: through constant and 1
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