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4 votes
2 answers
301 views

Maxcounters in JavaScript

I am trying to solve this question: MaxCounters. Solving it is straightforward, but solving it fast enough is proving very difficult. How can I improve the performance of this code? At the moment it ...
jackdaw's user avatar
  • 143
3 votes
2 answers
354 views

Challenge: phone keypad to letters - return all possible strings

The challenge: Given a mapping of digits to letters (as in a phone number), and a digit string, return all possible letters the number could represent. You can assume each valid number in the ...
MadHatter's user avatar
  • 855
3 votes
3 answers
1k views

JavaScript Sort Stack Coding Challenge

A coding challenge to write a function sortStack that receives a stack of integers into ascending order (with largest integers on top) and returns another stack ...
MadHatter's user avatar
  • 855
3 votes
1 answer
627 views

Find a Sum of Particles in A Set of Boxes Given a Number of Rows and Columns

This is a code challenge, from Codewars, the details of the specific challenge in depth can be found here: https://www.codewars.com/kata/magnet-particules-in-boxes/javascript. The summary of it ...
Cory Harper's user avatar
4 votes
3 answers
530 views

N-Repeated Element in Size 2N Array

The task is taken from leetcode In a array A of size 2N, there are N+1 unique elements, and exactly one of these elements is repeated N times. Return the element repeated N times. ...
thadeuszlay's user avatar
  • 3,981
2 votes
3 answers
528 views

Find non-duplicated integer in a list where every integer occurs three times except for one integer

The task Given an array of integers where every integer occurs three times except for one integer, which only occurs once, find and return the non-duplicated integer. For example, given [6, ...
thadeuszlay's user avatar
  • 3,981
6 votes
2 answers
583 views

Search and Replace (FreeCodeCamp intermediate algorithm scripting)

I completed this challenge Search and Replace and passed the tests: Perform a search and replace on the sentence using the arguments provided and return the new sentence. First argument is the ...
Leda Erlandson's user avatar