All Questions
115 questions
0
votes
1
answer
56
views
understanding a part of recursion for a binary search tree
Hello I basically need to implement a recursive function for insertion of a binary tree. I already implemented the chunk of insertion function (wether it's largest or smaller than root) but there's an ...
- 11
-4
votes
1
answer
60
views
Problem with recursive function that sums all numbers in array in Go
I want to sum all the numbers in array using recursive function
import (
"fmt"
)
func RemoveIndex(s []int, index int) []int {
return append(s[:index], s[index+1:]...)
}
func ...
- 1
-1
votes
1
answer
51
views
I am new to recursion, I could not get how this program print the output?
I am assuming that this program should give the output [5,4,3,2,1] but it is giving [1,2,3,4,5]. Why this is happening? How the recursion is working here? Please explain me?
function countup(n) {
...
- 21
1
vote
4
answers
115
views
Is array B a reversed version of array B function [duplicate]
I need a guidance to understand where my logic is not working.
I need to write a recursive function that receives array A, and array B from a user input.
The function is checking if the arrays are ...
- 19
0
votes
1
answer
33
views
PHP Category Recursion & Arrays not displaying all results [closed]
I'm using a category system which has parent categories which can have multiple child categories, which can also have child categories and so on... I am trying to use a script which will use the ...
- 843
0
votes
1
answer
104
views
Can this recursive function be optimized?
Is there a way to optimize the first defined function in attached code?
I wonder if the exercise I've done can be optimized for readability and performance. The exercise was about determining if the ...
1
vote
4
answers
672
views
Function to sum the first and last item in an array until there's only two items left in the array
I've recently failed a coding challenge and I'd like to know the solution to the problem.
Here's what was asked of me (from memory as I do not have access to the question anymore):
Create a function ...
- 801
-4
votes
1
answer
158
views
Difference between -- , -= 1 and - 1
I have been working through some freeCodeCamp exercises and while working on a recursion problem in which all the numbers between a given range have to be added to an array (including both the numbers)...
- 452
2
votes
3
answers
167
views
Recursion for even array in C
I understand there are a lot of questions around even recursion here, but I don't know in C wether its my logic or my syntax that's wrong (or presumably both) because from what I know I may need ...
- 23
0
votes
4
answers
1k
views
How to recursively map/restructure an object?
I would like an array of objects with all object keys from a nested object. I wrote a recursive function to do this however at the point that the function is recalled it is not going through the ...
- 323
-2
votes
2
answers
670
views
Java -how can I store an array in switch case
I need to build code that first gets a 2d array and then prints it.
for this, I built a menu with a switch case.
when the user clicks 0, the user types the size of the array (the size is always n*n), ...
-1
votes
1
answer
206
views
PHP Recursive Function - How To Avoid Using A Global Variable
I have created a function that returns an array of data for the descendants of a chosen Parent.
First it checks for Children of the Parent whose UUID we have fed to it, it then checks for further ...
- 43
0
votes
1
answer
48
views
function to make Tree like Array in to Array
I have $tree like array which made by function from the $array I need a function to make it $tree to $array back
so I need a function to make it back.
lets call it $list this time.
I will share $tree ,...
- 33
0
votes
1
answer
460
views
I have a task to write a recursive function to print all the numbers of an array whose indexes are prime numbers
I have a task to write a recursive function to print all the numbers of an array whose indexes are prime numbers.
Actually, I can understand recursion, but I can't get in for void functions.
This is ...
- 43
0
votes
1
answer
80
views
How to put the answer from recursive function in an array (PHP)?
there,
I tried many time to put the answer from the recursive function inside an array ($result) but I couldn't. Here the code:
function readDirs($path , $result = [])
{
$dirHandle = opendir($...
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