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December 2025

Advent of Code

25 days of coding challenges. Solve puzzles, earn points, climb the leaderboard.

December 2025

25 Days of Coding Challenges

1

Santa’s Cookie

easy
2

Reindeer Flight

hard
3

Elf Height

easy
4

Workshop Bonus

medium
5

Christmas Tree

hard
6

Snowball Counter

easy
7

Gift Name

medium
8

Sleigh Load

hard
9

Elf Attendance

medium
10

Reindeer Readiness

easy
11

Gift Inventory

hard
12

Gift Wrapper

easy
13

Workshop Data

hard
14

Candy Color

medium
15

Santa’s Async

hard
16

North Pole

hard
17

Elf Report

hard
18

Elf Path

hard
19

Magic Ornament

hard
20

Sleigh Diagnostics

hard
21

Santa’s Naughty

hard
22

Elf Workshop

hard
23

Reindeer Energy

hard
24

Gift Recommendation

hard
25★

The Final

hard
EasyMediumHard

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