reverse

问题 Based on this question Regex \d+(?:-\d+)+ will match this 10-3-1 and 5-0 . Example: This is 10-3-1 my string After performing the matching and reversing, I want it to be like this: This is 1-3-10 my string Notice that 10-3-1 should become 1-3-10 and not normal string reverse which would result in 1-3-01. 回答1: A basic algorithm would be: Extract the match from the string. "10-3-1" Split the match into a segments by the "-" character. You now have a list of elements. ["10","3","1"] Reverse the

问题 I have a sentence like this (in Hebrew,RTL): ואמר was here אוראל Now, when I insert this into array I got: array[0] = אוראל array[1] = was array[2] = here array[3] = :ואמר Now, because Hebrew is a RTL language I need to reverse the english letters and I need to switch the positions. Notice that I need to take care of any sentence (which means I can have more than two english words). How do I get the result to be like the following? ואמר ereh saw אוראל I thought maybe to build any time a new

问题 I have a function that reverse the bits in a byte but i don't understand the syntax. Why is used 0x0802U & 0x22110U and other binary operations(what are this numbers) unsigned char reverse(unsigned char B) { return (unsigned char)(((b * 0x0802U & 0x22110U) | (b * 0x8020U & 0x88440U)) * 0x10101U >> 16); } 回答1: Check the "Bit Twiddling Hacks" page for the explanation: Reverse the bits in a byte with 7 operations (no 64-bit) http://graphics.stanford.edu/~seander/bithacks.html 回答2: Direct link to

问题 I am asked to take a list of letters into two lists that are either equal in size (even sized original list I guess) or one is larger than the other by one element (odd sized list), and reverse the first one while I'm at it. Query and output example: ?- dividelist2([a,b,c,d,e,f], L1,L2). L1 = [c,b,a] L2 = [d,e,f] ?- dividelist2([a,b,c,d,e], L1,L2). L1 = [c,b,a] L2 = [d,e] % OR L1 = [b,a] L2 = [c,d,e] I've reached this solution, but I have a feeling something is wrong with it. Please let me

问题 I get the same string back when I try to reverse it in C++. I read that recursion is a good way to reverse things. I tried to implement a recursive algorithm by returning the first character of the string and calling the same function with the first character removed until the string has a size of 1. My first function removes the first character of the string and the second function reverses it: string deleteFirstElement(string input) { if (input.size() == 1) { return input; } // This loop

问题 Without using the split reverse and join functions, how would one do such a thing? The Problem Given: Reverse the words in a string Sample Input: "Hello World" Sample Output: "World Hello" <script> var newString = ""; var theString = prompt("Enter a Phrase that you would like to reverse (Ex. Hello world)"); newString = theString.split(" ").reverse().join(" ") document.write(newString); </script> 回答1: Another idea for reversing the words in a String is using a Stack data structure. Like so:

问题 I have to create a recursive Scheme function for my programming class that will take all the odd-numbered elements of a list, and then return them in reversed order. I have a function for reversing a list, and another function for getting the odd-numbered elements, but can't figure out how to combine the two into a new function, as they both are recursive. It has to be one function that doesn't call any functions other than itself. It can not call odd or reverse , and it has to have the same

问题 I have to create a recursive Scheme function for my programming class that will take all the odd-numbered elements of a list, and then return them in reversed order. I have a function for reversing a list, and another function for getting the odd-numbered elements, but can't figure out how to combine the two into a new function, as they both are recursive. It has to be one function that doesn't call any functions other than itself. It can not call odd or reverse , and it has to have the same

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 4 years ago . Is it possible to do a reverse ssh connection using JSCH? If it is not, is there any other pure Java library that I can use to do a reverse tunnel SSH connection? The command I want to mimic is similar than: ssh -fN -R 7000:localhost:22 username@yourMachine-ipaddress 回答1: There is an example gist that shows how

问题 I have several models that I need to do reverse lookups in, then somehow chain the querysets together. I got 3 models, (1) designers create (2) projects, and projects contain (3) uploaded images. Models class Designer(models.Model): ... class Project(models.Model): designer = models.ForeignKey('Designer') class UploadedImage(models.Model): project = models.ForeignKey('Project') So a designer opens up his page and wants to see all his projects and some images associated with his projects, I