KO | EN

GitLite

Minimalist Open Source Repository Search Engine

gitlite — search

#dsh #dsh-plugin #ai-agents #developer-tools #ai-agent #claude-code #mcp #typescript #codex #cli #rust #deepseek-harness

HackerRank-Solutions

★ 15 Open GitHub ↗

Solutions to HackerRank problems implemented in Java 8 and Python 3.

// repository documentation

Was this content helpful?

★ 0 (0 ratings)

# HackerRank-Solutions

Solutions and explanations to [HackerRank](https://www.hackerrank.com) problems implemented in Java 8 and Python 3.

## Implementation

|  Challenge | Java Solution| Python Solution
|:-------------:|:--------------------:| :--------------------:|
|[Kangaroo](https://www.hackerrank.com/challenges/kangaroo/problem)| [Solution.java ](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Kangaroo/Solution.java) | [Solution.py](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Kangaroo/Solution.py)
|[Between Two Sets](https://www.hackerrank.com/challenges/between-two-sets/problem) | [Solution.java](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Between%20Two%20Sets/Solution.java) | [Solution.py](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Between%20Two%20Sets/Solution.py)
|[Day of the Programmer](https://www.hackerrank.com/challenges/day-of-the-programmer/problem) |[Solution.java](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Day%20of%20the%20Programmer/Solution.java) | [Solution.py](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Day%20of%20the%20Programmer/Solution.py)
|[Sock Merchant](https://www.hackerrank.com/challenges/sock-merchant/problem)| [Solution.java](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Sock%20Merchant/Solution.java) | [Solution.py](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Sock%20Merchant/Solution.py)
|[Drawing Book](https://www.hackerrank.com/challenges/drawing-book/problem)| [Solution.java](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Drawing%20Book/Solution.java) |[Solution.py](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Drawing%20Book/Solution.py)
|[Forming a Magic Square](https://www.hackerrank.com/challenges/magic-square-forming/problem)| [Solution.java](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Forming%20a%20Magic%20Square/Solution.java) |[Solution.py](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Forming%20a%20Magic%20Square/Solution.py)
|[Picking Numbers](https://www.hackerrank.com/challenges/picking-numbers/problem)| [Solution.java](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Picking%20Numbers/Solution.java) | [Solution.py](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Picking%20Numbers/Solution.py)
|[Climbing the Leaderboard](https://www.hackerrank.com/challenges/climbing-the-leaderboard/problem)| [Solution.java](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Climbing%20the%20Leaderboard/Solution.java) | [Solution.py](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Climbing%20the%20Leaderboard/Solution.py)
|[Save the Prisoner!](https://www.hackerrank.com/challenges/save-the-prisoner/problem)| [Solution.java](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Save%20the%20Prisoner/Solution.java) | [Solution.py](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Save%20the%20Prisoner/Solution.py)
|[Circular Array Rotation](https://www.hackerrank.com/challenges/circular-array-rotation/problem)|[Solution.java](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Circular%20Array%20Rotation/Solution.java) | [Solution.py](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Circular%20Array%20Rotation/Solution.py)
|[Extra Long Factorials](https://www.hackerrank.com/challenges/extra-long-factorials/problem)|[Solution.java](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Extra%20Long%20Factorials/Solution.java) | [Solution.py](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Extra%20Long%20Factorials/Solution.py)
|[Append and Delete](https://www.hackerrank.com/challenges/append-and-delete/problem)| [Solution.java](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Append%20and%20Delete/Solution.java) | [Solution.py](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Append%20and%20Delete/Solution.py)
|[Sherlock and Squares](https://www.hackerrank.com/challenges/sherlock-and-squares/problem)| [Solutionjava](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Sherlock%20and%20Squares/Solution.java) | [Solution.py](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Sherlock%20and%20Squares/Solution.py)
|[Library Fine](https://www.hackerrank.com/challenges/library-fine/problem)| [Solution.java](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Library%20Fine/Solution.java) |[Solution.py](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Library%20Fine/Solution.py)
|[Non Divisible Subset](https://www.hackerrank.com/challenges/non-divisible-subset/problem)| [Solution.java](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Non%20Divisible%20Subset/Solution.java) | [Solution.py](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Non%20Divisible%20Subset/Solution.py)
|[Queen's Attack II](https://www.hackerrank.com/challenges/queens-attack-2/problem)| [Solution.java](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Queen's%20Attack%20II/Solution.java) | [Solution.py](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Queen's%20Attack%20II/Solution.py)
|[ACM ICPC Team](https://www.hackerrank.com/challenges/acm-icpc-team/problem)|[Solution.java](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/ACM%20ICPC%20Team/Solution.java) |[Solution.py](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/ACM%20ICPC%20Team/Solution.py)
|[Organizing Containers of Balls](https://www.hackerrank.com/challenges/organizing-containers-of-balls/problem)|[Solution.java](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Organizing%20Containers%20of%20Balls/Solution.java) | [Solution.py](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Organizing%20Containers%20of%20Balls/Solution.py)
|[Encryption](https://www.hackerrank.com/challenges/encryption/problem)|[Solution.java](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Encryption/Solution.java) | [Solution.py](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Encryption/Solution.py)
|[Bigger is Greater](https://www.hackerrank.com/challenges/bigger-is-greater/problem)|[Solution.java](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Bigger%20is%20Greater/Solution.java) | [Solution.py](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Bigger%20is%20Greater/Solution.py) 
|[Modified Kaprekar Numbers](https://www.hackerrank.com/challenges/kaprekar-numbers/problem)| [Solution.java](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Modified%20Kaprekar%20Numbers/Solution.java) |[Solution.py](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Modified%20Kaprekar%20Numbers/Solution.py)
|[Chocolate Feast](https://www.hackerrank.com/challenges/chocolate-feast/problem)| [Solution.java](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Chocolate%20Feast/Solution.java) |[Solution.py](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Chocolate%20Feast/Solution.py)
|[Lisa's Workbook](https://www.hackerrank.com/challenges/lisa-workbook/problem)| [Solution.java](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Lisa's%20Workbook/Solution.java) |[Solution.py](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Lisa's%20Workbook/Solution.py)
|[Flatland Space Stations](https://www.hackerrank.com/challenges/flatland-space-stations/problem)| [Solution.java](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Flatland%20Space%20Stations/Solution.java)|[Solution.py](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Flatland%20Space%20Stations/Solution.py)
|[Manasa and Stones](https://www.hackerrank.com/challenges/manasa-and-stones/problem)|[Solution.java](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Manasa%20and%20Stones/Solution.java) |[Solution.py](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Manasa%20and%20Stones/Solution.py)
|[The Grid Search](https://www.hackerrank.com/challenges/the-grid-search/problem)|[Solution.java](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/The%20Grid%20Search/Solution.java) |[Solution.py](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/The%20Grid%20Search/Solution.py)
|[Happy Ladybugs](https://www.hackerrank.com/challenges/happy-ladybugs/problem)|[Solution.java](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Happy%20Ladybugs/Solution.java) |[Solution.py](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Happy%20Ladybugs/Solution.py)
|[Strange Counter](https://www.hackerrank.com/challenges/strange-code/problem)|[Solution.java](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Strange%20Counter/Solution.java)|[Solution.py](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Strange%20Counter/Solution.py)
|[3D Surface Area](https://www.hackerrank.com/challenges/3d-surface-area/problem)|[Solution.java](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/3D%20Surface%20Area/Solution.java)|[Solution.py](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/3D%20Surface%20Area/Solution.py)
|[Absolute Permutation](https://www.hackerrank.com/challenges/absolute-permutation/problem)|[Solution.java](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Absolute%20Permutation/Solution.java)|[Solution.py](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Absolute%20Permutation/Solution.py)
|[The Bomberman Game](https://www.hackerrank.com/challenges/bomber-man/problem)|[Solution.java](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/The%20Bomberman%20Game/Solution.java) |[Solution.py](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/The%20Bomberman%20Game/Solution.py)
|[Ema's Supercomputer](https://www.hackerrank.com/challenges/two-pluses/problem)| [Solution.java](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Ema's%20Supercomputer/Solution.java) |[Solution.py](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Ema's%20Supercomputer/Solution.py)
|[Larry's Array](https://www.hackerrank.com/challenges/larrys-array/problem)| [Solution.java](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Larry's%20Array/Solution.java) |[Solution.py](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Larry's%20Array/Solution.py)
|[Almost Sorted](https://www.hackerrank.com/challenges/almost-sorted/problem)|[Solution.java](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Almost%20Sorted/Solution.java) |[Solution.py](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Almost%20Sorted/Solution.py)
|[Matrix Layer Rotation](https://www.hackerrank.com/challenges/matrix-rotation-algo/problem)|[Solution.java](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Matrix%20Layer%20Rotation/Solution.java) |[Solution.py](https://github.com/alessandrobardini/HackerRank-Solutions/blob/master/All%20Tracks/Core%20CS/Algorithms/Implementation/Matrix%20Layer%20Rotation/Solution.py)

HackerRank-Solutions

Explore Similar Repositories

Was this content helpful?

Recent Feedback

Download README