HackerRank Solutions
My solutions to HackerRank challenges
Included Challenges
Algorithms
Greedy
- Maximum Perimeter Triangle (Score: 20)
Implementation
- Apple and Orange (Score: 10)
- Between Two Sets (Score: 10)
- Bon Appétit (Score: 10)
- Breaking the Records (Score: 10)
- Divisible Sum Pairs (Score: 10)
- Grading Students (Score: 10)
- Kangaroo (Score: 10)
- Sock Merchant (Score: 10)
- Jumping on the Clouds: Revisited (Score: 15)
- Library Fine (Score: 15)
- Save the Prisoner! (Score: 15)
- Viral Advertising (Score: 15)
- Angry Professor (Score: 20)
- Beautiful Triplets (Score: 20)
- Circular Array Rotation (Score: 20)
- Jumping on the Clouds (Score: 20)
- Minimum Distances (Score: 20)
- Non-Divisible Subset (Score: 20)
- Repeated String (Score: 20)
- Service Lane (Score: 20)
- Sherlock and Squares (Score: 20)
- Utopian Tree (Score: 20)
- Chocolate Feast (Score: 25)
- Cut the sticks (Score: 25)
- Fair Rations (Score: 25)
- Find Digits (Score: 25)
- Flatland Space Stations (Score: 25)
- Lisa's Workbook (Score: 25)
- Cavity Map (Score: 30)
- Happy Ladybugs (Score: 30)
- Manasa and Stones (Score: 30)
- Strange Counter (Score: 30)
- The Grid Search (Score: 30)
- Bigger is Greater (Score: 35)
- Absolute Permutation (Score: 40)
- Ema's Supercomputer (Score: 40)
- Larry's Array (Score: 40)
- The Bomberman Game (Score: 40)
- Almost Sorted (Score: 50)
Strings
- Ashton and String (Score: 100)
- Morgan and a String (Score: 100)
- Sherlock and Valid String (Score: 100)
- Two Two (Score: 150)
Warmup
- A Very Big Sum (Score: 10)
- Birthday Cake Candles (Score: 10)
- Compare the Triplets (Score: 10)
- Diagonal Difference (Score: 10)
- Mini-Max Sum (Score: 10)
- Plus Minus (Score: 10)
- Simple Array Sum (Score: 10)
- Staircase (Score: 10)
- Time Conversion (Score: 15)
Regex
Applications
- Detect HTML links (Score: 10)
- Detect the Domain Name (Score: 15)
- Detect the Email Addresses (Score: 15)
- Find a Word (Score: 15)
- Building a Smart IDE: Identifying comments (Score: 20)
- Detecting Valid Latitude and Longitude Pairs (Score: 20)
- Building a Smart IDE: Programming Language Detection (Score: 30)
Directory Structure
| Item | Description |
|---|---|
| UnitTest.vb | Unit tests main |
| Challenges\ | Root folder for challenges |
| Challenges\Challenges.xml | Definition file for challenges |
| Challenges\ChallengeId\ | Challenge folder |
| Challenges\ChallengeId\Code.vb | Challenge specific solution code |
| Challenges\ChallengeId\In\ | Challenge specific inputs |
| Challenges\ChallengeId\Out\ | Challenge specific expected outputs |
Version History
- v22 added Grading Students, Between Two Sets, Breaking the Records
- v21 added Mini-Max Sum, Birthday Cake Candles
- v20 added Apple and Orange, Happy Ladybugs, Library Fine, Manasa and Stones
- v19 added The Grid Search, Cavity Map
- v18 added Beautiful Triplets, Chocolate Feast , Larry's Array
- v17 added Almost Sorted, Service Lane
- v16 added Fair Rations, Utopian Tree, Sherlock and Squares
- v15 added Minimum Distances, Find Digits
- v14 added Ema's Supercomputer
- v13 added Absolute Permutation, The Bomberman Game
- v12 added Jumping on the Clouds: Revisited, Lisa's Workbook, Flatland Space Stations
- v11 added Strange Counter, Save the Prisoner!
- v10 added Viral Advertising, Jumping on the Clouds, Bigger is Greater, Bon Appétit
- v9 added Sock Merchant, Non-Divisible Subset, Repeated String
- v8 added Kangaroo, Divisible Sum Pairs, Angry Professor, Cut the sticks
- v7 added Plus Minus, Staircase, Time Conversion, Maximum Perimeter Triangle, Circular Array Rotation
- v6 added Simple Array Sum, Compare the Triplets, A Very Big Sum, Diagonal Difference
- v5 added Ashton and String
- v4 added Detect HTML links, Find a Word, Detect the Email Addresses, Detect the Domain Name, Building a Smart IDE: Identifying comments, Detecting Valid Latitude and Longitude Pairs, Building a Smart IDE: Programming Language Detection
- v3 added Sherlock and Valid String
- v2 added Two Two
- v1 added Morgan and a String