Recent questions tagged Recursion

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Algorithm NQueens ( k, n) //Prints all Solution to the n-queens problem { for i := 1 to n do ... how is this algorithm implements backtracking? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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recursion - How do I write a recursive for-loop "repeat" macro to generate C code with the CPP preprocessor?

I want to force the preprocessor to do some automatic code generation for me. I don't need much: just a ... ... [1] Understatement intended. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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recursion - Maze solving with python

I am trying to make a maze solver, and it is working except that instead of the path being marked by "o" I ... How is it possible to do this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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recursion - Javascript - Iterate over deep nested object and change certain unknown values

I have an object with an unknown number of levels and types (array, object, string), here is an example: var ... case. Any help is appreciated. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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recursion - How to write non-leaking tail-recursive function using Stream.cons in Scala?

When writing a function operating on Stream(s), there are different notions of recursion. The first simple sense ... to the stream head. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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recursion - PHP FTP recursive directory listing

I'm trying to make a recursive function to get all the directories and sub directories from my ftp server in ... suggestion please let me know See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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recursion - Ordering hierarchy from recursive query results in SQL 2005

I've got a 'Task' table with the following columns (the TaskOrder is for ordering the children within the ... an unlimited numbr of levels. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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recursion - Recursive function for trees in Python

I'm trying to make a function in Python, that takes an arbitrary node of a tree, and populates a list of lists ... where I'm going wrong here. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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recursion - BASH: recursive program to replace text in a tree of files

I am completely new at Bash but I just can't seem to find a way to make it do what I want. Imagine you ... way to do this in one line? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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recursion - The idiomatic way to implement generators (yield) in Golang for recursive functions

[ Note: I read Python-style generators in Go, this is not a duplicate of it. ] In Python / Ruby / ... the idiomatic way to deal with this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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recursion - How to understand trampoline in JavaScript?

Here is the code: function repeat(operation, num) { return function() { if (num <= 0) return operation() ... how did it accomplish its goal? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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recursion - Recursive function if statement mismatched types in Rust

fn recursive_binary_search<T: Ord>(list: &mut [T], target: T) -> bool { if list.len() < 1 { return ... and there is a return function call? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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recursion - Is it possible to express a recursive definition in SPARQL?

Imagine that you have a simple social network where people must have only one property rdfs:label with value ... " following Joshua's suggestion See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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recursion - Groovy :: Map Find Recursive

Edit See @tim's solution below for the "correct" Groovy-esque approach to map recursion. Since Map findRecursive does ... Foo.finder(map,'team') See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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recursion - Swift struct type recursive value

Structs can't have recursive value types in Swift. So the follow code can't compile in Swift struct A { let child: A ... A { let children: [A] } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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recursion - find possible paths in map : recursive function in javascript

doc = { 'a': { 'b': { 'c': 'hello' }, 'd': { 'c': 'sup', 'e': { 'f': 'blah blah blah' } } ... result = (get(doc, 'a.*.e')) console.log(result) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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recursion - R: split string into numeric and return the mean as a new column in a data frame

I have a large data frame with columns that are a character string of numbers such as "1, 2, 3, 4". I ... using a variable there. Much thanks! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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recursion - Recursive Generators in JavaScript

I am trying to write a recursive generator for an in order traversal. class Tree { *inOrderTraversal() { function ... runtime test.js | node See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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recursion - String Reduction - Programming Contest . Solution needed

I have a question which asks us to reduce the string as follows. The input is a string having only A, B or ... than the length of CCCCCCCC = 8. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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recursion - Are all scheduling problems NP-Hard?

I know there are some scheduling problems out there that are NP-hard/NP-complete ... however, none of them ... this? Yay for compound questions! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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recursion - Recursive listing of all files matching a certain filetype in Groovy

I am trying to recursively list all files that match a particular file type in Groovy. This example almost does it. ... different way to do it? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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recursion - How to implement TypeScript deep partial mapped type not breaking array properties

Any ideas as to how might apply TypeScript's Partial mapped type to an interface recursively, at the same time not ... string[]; }> Like so See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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recursion - Anonymous recursive function in Scala

Is there a way to write an anonymous function that is recursive in Scala? I'm thinking of something like ... literals / anonymous functions?) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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recursion - Python recursive function returning none after completion

My code is supposed to countdown from n to 1. The code completes but returns None at the end. Any suggestions as ... == '__main__': main() See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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recursion - Understanding Peter Norvig's permutation solution in PAIP

Peter Norvig's PAIP book contains this code as a solution to the permutation problem (some sections are removed ... in the first place? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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recursion - Fibonacci in Scheme

I am trying to understand recursion in Scheme and I have a hard time doing the dry run for it, for example a simple ... (fib (- n 2))))) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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recursion - Why is recursive regex not regex?

I was reading through some of the responses in this question and saw that a few people said that recursive ... expressions. Why is this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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recursion - PHP: How do I remove nested tags, and relocate them in an un-nested way?

I need to remove all occurrences of a bb style tag from a string. The tags can be nested, and this is ... 1> Any help would be appreciated. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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