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4 votes
1 answer
2k views

Swift - Finding longest binary gap of a given integer

I recently had the chance to try Codility's algorithm training, and the very first one in the list is finding the longest binary gap of a given integer. I tried to implement this in Swift, and after ...
badhanganesh's user avatar
2 votes
2 answers
2k views

Determine if Array has an Increasing Sequence

I wrote a function in JavaScript that expects an array of integers (negative or positive) and determines if that array has an increasing sequence. For the sake of better time performance I made the ...
MadHatter's user avatar
  • 855
2 votes
1 answer
1k views

Find all pairs in an array whose absolute difference equals x

I have an array A of integers with n values and an integer x. I need to find all the pairs in that array whose absolute ...
user_1703224's user avatar
4 votes
4 answers
1k views

Find element that has been removed from a shuffled array

For a function to determine which element has been removed from a shuffled array, I came up with: ...
Robin Andrews's user avatar
8 votes
2 answers
5k views

Finding the count of negative sub-arrays for a given array

I want to improve my implementation for the following problem: You are given an array of n integers. A sub-array is "Negative" if sum of all the integers in that ...
John Doe's user avatar
  • 245
7 votes
2 answers
1k views

Finding pairs of numbers within A that add up to N

I am working on an interview question from Amazon Software Interview: Given an integer N and an array of unsorted integers A find all pairs of numbers within A which add up to N I have a working ...
committedandroider's user avatar
4 votes
3 answers
2k views

Removing duplicates from an array

I recently wrote this JavaScript algorithm for removing duplicates from an array as part of a job interview process, but was turned down for the position after submitting the code. I didn't receive ...
jmknoll's user avatar
  • 141