Advent of Code 2019

My solutions to the Advent of Code 2019.

My Progress (36*/50*)

Day	Puzzle 1	Puzzle 2
1	Solved	Solved
2	Solved	Solved
3	Solved	Solved
4	Solved	Solved
5	Solved	Solved
6	Solved	Solved
7	Solved	Solved
8	Solved	Solved
9	Solved	Solved
10	Solved	Solved
11	Solved	Solved
12	Solved	Solved1
13	Solved	Solved
14	Solved	Solved2
15	Solved	Not attempted3
16	Solved	Solved4
17	Solved	Solved
18	Not attempted5	Not attempted5
19	Solved	Solved
20	Not attempted5	Not attempted5
21	Not attempted5	Not attempted5
22	Solved	Not attempted3
23	Not attempted5	Not attempted5
24	Not attempted5	Not attempted5
25	Not attempted5	Not attempted5

To Run

I've chosen to solve the puzzles using C# so make sure you've got .NET Core 3.1 installed and just run the Console application.

The application will prompt you to enter the day and puzzle numbers. (Note I've deliberately included no real error handling!)

Notes

1. Read hints on the subreddit to consider using the least common multiple. Hardest challenge yet.
2. Read hints on the subreddit to avoid brute force approach.
3. Ran out of time on the day to attempt, will try and catch up.
4. Read hints on the subreddit to avoid brute force approach and ignore first half of input.
5. Too busy getting ready for Christmas, will try and catch up probably after the break.