Category "recursion"

How I use return inside a recursive functions in php

I have a php recursive function as shown in the below: function displayDropdown(&$catList, $parent, $current=[], $level=0) { if ($parent==0) { foreac

Binary search with recursion c#

I got stuck with my binary search method and I don't really know what I'm doing. At this moment I got 1 Error (CS0161) not all code paths return a value int l

Confusion about recursion in a BST python

I am trying to understand the recursive call within the binary function is_bst. The goal of the function is to check if a tree is a binary search tree or not. N

How to check if all elements in an array are equal using recursion in Python?

I am practising recursion and am not sure why my code is failing. def isEqual(arr, n): if(n==1): return arr[n] return arr[n-1]==isEqual(arr, n-1

Recursion using Flux

I have a scenario, where I am using the State pattern. Every Start has an Action defined. We start with an initial state and an initial Action and then keep goi

How to check whether all number elements in an array are even numbers with recursion?

I'm currently learning as much as I can about recursion but I'm really stuck on how to use it to check whether all the number elements in an array are even numb

Converting Complex Tree Structure to JSON Python

I need to convert a Tree with the following class structure: Class Tree: def __init__(self, data): self.data = data s

tail recursion count, split & get the prefix of a list functions

Language: Scala I'm working on some tail recursion questions in Scala. (GOAL) A function that counts the number of ones in a list. The function takes a list of

Flatten nested list and retain all parent keys for each bottom-level element

I need to flatten an arbitrarily nested list to a data frame and retain the path of keys / indices in one column, while extracting each element on the bottom le

The code works but not for all of the inputs

I have an assignment in recursion. The problem: A game board is defined by a list. Each list index, (0: n-1) is a row in the board, and the int value in each li

Recursively find files with a specific extension and copy them to a new directory with new names

I tried to find all the .xvg files generated by Gromacs inside a directory as well as its subdirectories and then copy them to a new directory, with new names f

Method to recursively search for a file in directory and subdirectories doesn't find the file

I wrote a function to find a file in a specific directory and its sub-directories. You can input the filename with or without extension (basename vs. filename).

Adding logs within a wrapped function

I have created a function wrapper to help give me various print statements: function fnWrapper(fn, verbosity=false) { return function(...rest) {

"put together" output through recursion in Haskell

I really don't know how to properly describe my problem. I have an assignment to do and as part of that I need to take a list and return a new list that is an a

A basic C++ recursion question I can't wrap my head around

I am learning the basics of CPP programming. I came across this basic recursion question which I'm unable to understand. The output is 1 2 3 4 5 but I don't und

Improve debugging output of a recursive function

I have the following recursive function to count the number of ways change can be returned given various coin denominations: function makeChange(amount, coi

Improve debugging output of a recursive function

I have the following recursive function to count the number of ways change can be returned given various coin denominations: function makeChange(amount, coi

Recursively update nested object values for specific keys based on another object

*** UPDATED object structure *** I'd like to update recursively the property values of mainObject from the properties that exist in updatingObject. let mainObje

How to solve a partition problem using recursion only

I got a partition problem for which I need advice. I'm given a 1D array whose length is even. I need to write a boolean method to determine whether the array ca

How to find all paths recursively from relational table in SQL Server using transitive property?

I would like to be able to recursively find all relationships in a table. I have a relational table, and essentially I would like to apply the transitive proper

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