All Questions
18 questions
2votes
2answers
130views
Project sequence to multiple sequences using LINQ (or extension methods)
I'm creating a method that expands a sequence. This is a sample of how it works: Input: {1, 2, 3} Output: {1}, {1, 2}, {1,2,3} So far, I've been able to solve the ...
- 233
1vote
1answer
152views
Eliminating repetitions of subsequent items in a list
I would like to convert a list AA = {1, 12, 3, 3, 3, 8, 5, 5 } into list B ...
- 233
0votes
1answer
195views
Simplifying for loops that includes conditions with better linq queries
The code below selects all items that are locked. How can I optimise it? ShopItemData doesn't contain a field for locked/unlocked. ...
- 113
4votes
2answers
196views
Finding which items have at least one common value with other items
I have the following collection : ...
- 421
3votes
1answer
966views
Non brute force algorithm for Birthday Chocolate
Problem: https://www.hackerrank.com/challenges/the-birthday-bar/problem Lily has a chocolate bar that she wants to share it with Ron for his birthday. Each of the squares has an integer on it. She ...
- 131
5votes
1answer
95views
Representing relations between devices when presented with only one-to-many mappings
There are devices that communicate between each other. Already existing in the Legacy codebase is a list of one-to-many mappings between the devices. I have written a function in my backend that ...
9votes
3answers
783views
LINQ-ifying Colour Generation from Strings
Recently I was thinking about how Google, Microsoft Outlook on Windows Phone (and now many others) method of giving you a coloured icon with a letter in the centre of it works. Essentially, given ...
- 20.2k
2votes
2answers
896views
Get first DateTime by given weekdays and a starttime
At work there is an input-system where customers are able to specify weekdays and a starting time for an event. The weekdays are integers in the range from 1 (Monday) to 7 (Sunday). After the customer ...
- 149
3votes
1answer
175views
Rolling up Invoice Items Matching Certain Criteria
I have a listing of invoice line items that I need to apply some convoluted business logic to. We have another listing of items that I compare the invoice items to and if I find matches, I then need ...
3votes
2answers
117views
How to find contradiction in order of items in multiple sequences
Suppose you have several sequences: A: 1 2 3 4 5 B: 2 4 5 C: 2 1 3 4 5 D: 3 2 Here, some pairs of list contradicts each other, because they ...
- 151
0votes
1answer
535views
23votes
5answers
4kviews
Linq me a FizzBuzz
I got this requirement recently: Write some code that prints out the following for a contiguous range of numbers: the number 'fizz' for numbers that are multiples of 3 'buzz' for numbers that are ...
- 525
0votes
1answer
229views
7votes
3answers
8kviews
Searching all diagonals of a 2D M x M array
I've started writing a piece of code to help me search for an object in all the objects found in the diagonals of an M x M 2D array. Though the code works, I'd like to know if there is a way I can ...
- 269
6votes
2answers
5kviews
Determining expiration date based on list of months in which to refresh
I have a list of months in which users are required to update some data. I want to determine at what date they should have updated their data. They must update in March, May and August. If today is ...
- 161
