All Questions
27 questions
10votes
2answers
696views
Array duplicate removal for duplicates exceeding `N`-number
I recently encountered a front-end interview coding challenge question that required one to create a function which returned an array that excluded numbers that occurred more than ...
- 103
8votes
1answer
2kviews
Merge Intervals in JavaScript
This is a task taken from Leetcode - Given a collection of intervals, merge all overlapping intervals. Example 1: ...
- 3,981
7votes
1answer
4kviews
Given a string containing just parentheses, determine if the input string is valid
The task is taken from leetcode Given a string containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid. An input string is valid if: ...
- 3,981
6votes
4answers
3kviews
Find all letter Combinations of a Phone Number
The task is taken from LeetCode Given a string containing digits from 2-9 inclusive, return all possible letter combinations that the number could represent. A mapping of digit to letters (just ...
- 3,981
5votes
1answer
119views
Advent Of Code 2017 Day 4 (part 2) in Functional Programming (FP)
I wanted to practice functional programming (FP) without using any library but using vanilla JavaScript only. So I took a problem from Advent of Code (the 2nd part of Day 4) You can only access the ...
- 3,981
4votes
2answers
324views
square the elements of a sorted list and give the output in sorted order
Given a sorted list of integers, square the elements and give the output in sorted order. For example, given [-9, -2, 0, 2, 3], return [0, 4, 4, 9, 81]. My solution 1: ...
- 3,981
4votes
1answer
114views
Advent Of Code 2017 Day 4 (part 1) in Functional Programming (FP)
I wanted to practice functional programming (fp) without using any library but using vanilla JS only. So I took a problem from Advent of Code (the 1st part of Day 4): A new system policy has been ...
- 3,981
3votes
4answers
1kviews
Finding the max sequence finder
Problem Statement Find the max sequence finder. findMaxSequence([3, 2, 3, 4, 2, 2, 4]); ...
- 3,401
3votes
2answers
898views
Robot Return to Origin
The task is taken from leetcode There is a robot starting at position (0, 0), the origin, on a 2D plane. Given a sequence of its moves, judge if this robot ends up at (0, 0) after it completes ...
- 3,981
3votes
2answers
8kviews
Given a set of closed intervals, find the smallest set of numbers that covers all the intervals
The Task: Given a set of closed intervals, find the smallest set of numbers that covers all the intervals. If there are multiple smallest sets, return any of them. For example, given the ...
- 3,981
3votes
0answers
114views
Advent of Code 2017 Day 3 (part 1) in Functional Programming (FP)
I wanted to practice functional programming (FP) without using any library but using vanilla JS only. So I took a problem from Advent of Code. https://adventofcode.com/2017/day/3 You come across an ...
- 3,981
2votes
1answer
757views
Given time intervals determine if a person could attend all meetings
The task is taken from LeetCode Given an array of meeting time intervals consisting of start and end times [[s1,e1],[s2,e2],...] ...
- 3,981
2votes
1answer
2kviews
Find common characters (LeetCode)
The task is taken from leetcode Given an array A of strings made only from lowercase letters, return a list of all characters that show up in all strings within the list (including duplicates). ...
- 3,981
2votes
1answer
165views
Advent of Code 2017 Day 6 (part 1) in Functional Programming (FP)
I wanted to practice functional programming (FP) without using any library but using vanilla JS only. So I took a problem from Advent of Code (the 1st part of Day 6): http://adventofcode.com/2017/day/...
- 3,981
2votes
1answer
105views
Advent of Code 2017 Day 5 (part 1) in Functional Programming (FP)
I wanted to practice functional programming (FP) without using any library but using vanilla JS only. So I took a problem from Advent of Code (the 1st part of Day 5): An urgent interrupt arrives ...
- 3,981
