Awesome
HackerRank Algorithms Solutions
This repository contains solutions to the Algorithms Domain part of HackerRank. The Algorithms Domain Falls under a broader Problem Solving Skill Set in HackerRank which consists of both Data Structures and Algorithms.
The Algorithms Domain is further Divided into the following sub-domains. To Contribute have a look at Contributing.md and happy coding 😀 🐱💻.
Sub Domains & Problems (+Solutions) in the Algorithms Domain
⚡ Quick Links: Warm up | Implementation | Strings | Sorting | Search | Graph Theory | Greedy | Dynamic Programming | Constructive Algorithms | Bit Manipulation | Recursion | Game Theory | NP Complete | Debugging
Warmup 
| Problem | Difficulty | Solution Link |
|---|---|---|
| Solve Me First | Easy |   |
| Simple Array Sum | Easy | |
| Compare The Triplets | Easy | |
| A very Big Sum | Easy | |
| Diagonal Difference | Easy | |
| Plus Minus | Easy | |
| Staircase | Easy | |
| Mini-Max Sum | Easy | |
| Birthday Cake Candles | Easy | |
| Time Conversion | Easy | |
Implementation 
Strings 
Sorting 
| Problem | Difficulty | Solution Link |
|---|---|---|
| Insertion Sort - Part 1 | Easy | |
| Insertion Sort - Part 2 | Easy | |
| Running Time of Algorithms | Easy | |
| Quicksort 1 - Partition | Easy | |
| Fraudulent Activity Notifications | Medium | |
| Lily's Homework | Medium | |
| Insertion Sort Advanced Analysis | Advanced |
Search 
| Problem | Difficulty | Solution Link |
|---|---|---|
| Missing Numbers | Easy | |
| Hackerland Radio Transmitters | Medium | |
| Gridland Metro | Medium | |
| KnightL On ChessBoard | Medium | |
| Minimum Loss | Medium | |
| Short Palindrome | Medium | |
| Count Luck | Medium | |
| Cut The Tree | Medium | |
| Gena Playing Hanoi | Medium | |
| Beautiful Quadruples | Medium | |
| Red Knight's Shortest Path | Medium | |
| Maximizing Mission Points | Hard | |
| Making Candies | Hard | |
| Bike Racers | Hard | |
| Task Scheduling | Hard | |
| Similar Pair | Hard | |
| Absolute Element Sum | Hard | |
| Almost Integer Rock Garden | Hard | |
| Sorted Subsegments | Hard | |
| Distant Pairs | Hard | |
| Knight Richard's Knights | Hard |
Graph Theory 
Greedy 
| Problem | Difficulty | Solution Link |
|---|---|---|
| Minimum Absolute Difference In Array | Easy | |
| Marc's Cakewalk | Easy | |
| Grid Challenge | Easy | |
| Luck Balance | Easy | |
| Maximum Perimeter Triangle | Easy | |
| Beautiful Pairs | Easy | |
| Sherlock and The Beast | Easy | |
| Priyanka and Toys | Easy | |
| Largest Permutation | Easy | |
| Mark and Toys | Easy | |
| Jim and The Orders | Easy | |
| Permuting Two Arrays | Easy | |
| Candies | Medium | |
| Greedy Florist | Medium | |
| Max Min | Medium | |
| Cloudy Day | Medium | |
| Cutting Boards | Hard | |
| Chief Hopper | Hard | |
| Sherlock and MinMax | Hard | |
| Accessory Collection | Hard | |
| Fighting Pits | Hard | |
| Reverse Shuffle Merge | Advanced | |
| Team Formation | Advanced |
Dynamic Programming 
Constructive Algorithms 
| Problem | Difficulty | Solution Link |
|---|---|---|
| Lena Sort | Medium | |
| Flipping The Matrix | Medium | |
| Gaming Array | Medium | |
| New Year Chaos | Medium | |
| Bonetrousle | Medium | |
| Yet Another KMP Problem | Hard | |
| Beautiful 3 Set | Hard | |
| Inverse RMQ | Hard | |
| Lovely Triplets | Advanced | |
| Array Construction | Advanced | |
| Two Subarrays | Expert |
Bit Manipulation 
| Problem | Difficulty | Solution Link |
|---|---|---|
| Lonely Integer | Easy | |
| Maximizing XOR | Easy | |
| Sum vs XOR | Easy | |
| Flipping Bits | Easy | |
| Counter Game | Medium | |
| Xor-sequence | Medium | |
| The Great XOR | Medium | |
| Yet Another Minimax Problem | Medium | |
| Sansa and XOR | Medium | |
| AND Product | Medium | |
| Winning Lottery Ticket | Medium | |
| Cipher | Medium | |
| What's Next? | Medium | |
| A or B | Medium | |
| Xoring Ninja | Hard | |
| XOR Matrix | Hard | |
| String Transmission | Hard | |
| Manipulative Numbers | Hard | |
| Stone Game | Hard | |
| Mixing Proteins | Hard | |
| Maximizing The Function | Hard | |
| 2's Complement | Advanced | |
| Changing Bits | Advanced | |
| XOR Key | Advanced | |
| XOR Subsequences | Advanced | |
| Iterate It | Expert | |
| Hamming Distance | Expert |
Recursion
| Problem | Difficulty | Solution Link |
|---|---|---|
| The Power Sum | Medium | |
| Crossword Puzzle | Medium | |
| Recursive Digit Sum | Medium | |
| Simplified Chess Engine | Medium | |
| Password Cracker | Medium | |
| Stone Division, Revisited | Medium | |
| Arithmetic Expressions | Hard | |
| K Factorization | Hard | |
| Bowling Pins | Hard | |
| Simplified Chess Engine II | Hard | |
| Repitive K-Sums | Advanced |
Game Theory 
| Problem | Difficulty | Solution Link |
|---|---|---|
| Game Of Stones | Easy | |
| Tower Breaker | Easy | |
| A Chessboard Game | Easy | |
| Introduction To Nim Game | Easy | |
| Misère Nim | Easy | |
| Nimble Game | Easy | |
| Poker Nim | Easy | |
| Alice and Bob's Silly Game | Medium | |
| Tower Breakers, Revisited! | Medium | |
| Tower Breakers, Again! | Medium | |
| Zero Move Nim | Medium | |
| Chessboard Game Again | Medium | |
| Digits Square Board | Medium | |
| Fun Game | Medium | |
| Chocolate In Box | Medium | |
| Kitty and Katty | Medium | |
| Powers Game | Medium | |
| Deforestation | Medium | |
| Bob and Ben | Medium | |
| Tower Breakers - The Final Battle | Medium | |
| Permutation Game | Medium | |
| Play on Benders | Medium | |
| New Year Game | Medium | |
| Vertical Rooks | Medium | |
| A Stone Game | Medium | |
| Stone Division | Hard | |
| Simple Game | Hard | |
| Move The Coins | Hard | |
| Stone Piles | Hard | |
| Chocolate Game | Hard | |
| The Prime Game | Hard | |
| Tastes Like Winning | Expert |
NP Complete 
| Problem | Difficulty | Solution Link |
|---|---|---|
| Walking The Approximate Longest Path | Hard | |
| Sam's Puzzle (Approximate) | Advanced | |
| Spies, Revised | Expert | |
| TBS Problem | Expert |
Debugging 
| Problem | Difficulty | Solution Link |
|---|---|---|
| XOR Strings | Easy | |
| Smart Number | Easy | |
| Prime Dates | Medium | |
| Minimum Operations | Medium | |
| Zig Zag Sequence | Medium |