This repository contains 185 solutions to Hackerrank practice problems with Python 3 and Oracle SQL.
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- Algorithms
- Warmup
- Solve Me First | Problem | Solution | Score: 1
- Simple Array Sum | Problem | Solution | Score: 10
- Compare the Triplets | Problem | Solution | Score: 10
- A Very Big Sum | Problem | Solution | Score: 10
- Diagonal Difference | Problem | Solution | Score: 10
- Plus Minus | Problem | Solution | Score: 10
- Staircase | Problem | Solution | Score: 10
- Mini-Max Sum | Problem | Solution | Score: 10
- Birthday Cake Candles | Problem | Solution | Score: 10
- Time Conversion | Problem | Solution | Score: 15
- Implementation
- Grading Students | Problem | Solution | Score: 10
- Apple and Orange | Problem | Solution | Score: 10
- Kangaroo | Problem | Solution | Score: 10
- Between Two Sets | Problem | Solution | Score: 10
- Breaking the Records | Problem | Solution | Score: 10
- Birthday Chocolate | Problem | Solution | Score: 10
- Electronics Shop | Problem | Solution | Score: 15
- Cats and a Mouse | Problem | Solution | Score: 15
- Forming a Magic Square | Problem | Solution | Score: 20
- Picking Numbers | Problem | Solution | Score: 20
- Climbing the Leaderboard | Problem | Solution | Score: 20
- The Hurdle Race | Problem | Solution | Score: 15
- Sorting
- Search
- Greedy
- Dynamic Programming
- Warmup
- Artificial Intelligence
- C++
- Data Structures
- Interview Preparation Kit - CPP
- Warm-up Challenges
- Arrays
- Interview Preparation Kit - Python
- Warm-up Challenges
- Arrays
- Dictionaries and Hashmaps
- Sorting
- Search
- Dynamic Programming
- Python
- Introduction
- Say Hello, World! With Python | Problem | Solution | Score: 5
- Python If-Else | Problem | Solution | Score: 10
- Arithmetic Operators | Problem | Solution | Score: 10
- Python Division | Problem | Solution | Score: 10
- Loops | Problem | Solution | Score: 10
- Write a function | Problem | Solution | Score: 10
- Print Function | Problem | Solution | Score: 20
- Basic Data Types
- Strings
- sWAP cASE | Problem | Solution | Score: 10
- String Split and Join | Problem | Solution | Score: 10
- What's Your Name | Problem | Solution | Score: 10
- Mutations | Problem | Solution | Score: 10
- Find a string | Problem | Solution | Score: 10
- String Validators | Problem | Solution | Score: 10
- Text Alignment | Problem | Solution | Score: 10
- Text Wrap | Problem | Solution | Score: 10
- Designer Door Mat | Problem | Solution | Score: 10
- String Formatting | Problem | Solution | Score: 10
- Capitalize! | Problem | Solution | Score: 20
- Sets
- Introduction to Sets | Problem | Solution | Score: 10
- No Idea! | Problem | Solution | Score: 50
- Symmetric Difference | Problem | Solution | Score: 10
- Set add() | Problem | Solution | Score: 10
- Set discard() remove() pop() | Problem | Solution | Score: 10
- Set union() Operation | Problem | Solution | Score: 10
- Set intersection() Operation | Problem | Solution | Score: 10
- Set difference() Operation | Problem | Solution | Score: 10
- Set symmetric_difference() Operation | Problem | Solution | Score: 10
- Set Mutations | Problem | Solution | Score: 10
- The Captain's Room | Problem | Solution | Score: 10
- Check Subset | Problem | Solution | Score: 10
- Check Strict Superset | Problem | Solution | Score: 10
- Itertools
- itertoolsproduct() | Problem | Solution | Score: 10
- itertoolscombinations() | Problem | Solution | Score: 10
- itertoolspermutations() | Problem | Solution | Score: 10
- itertoolscombinations_with_replacement() | Problem | Solution | Score: 10
- Compress the String! | Problem | Solution | Score: 20
- Iterables and Iterators | Problem | Solution | Score: 40
- Maximize It! | Problem | Solution | Score: 50
- Collections
- collectionsCounter() | Problem | Solution | Score: 10
- DefaultDict Tutorial | Problem | Solution | Score: 20
- Collections namedtuple() | Problem | Solution | Score: 20
- Collections OrderedDict() | Problem | Solution | Score: 20
- Word Order | Problem | Solution | Score: 50
- Collections deque() | Problem | Solution | Score: 20
- Company Logo | Problem | Solution | Score: 30
- Piling Up! | Problem | Solution | Score: 50
- Date and Time
- Errors and Exceptions
- Numpy
- Introduction
- SQL
- Basic Select
- Revising the Select Query I | Problem | Solution | Score: 10
- Revising the Select Query II | Problem | Solution | Score: 10
- Select All | Problem | Solution | Score: 10
- Select By ID | Problem | Solution | Score: 10
- Japanese Cities' Attributes | Problem | Solution | Score: 10
- Japanese Cities' Names | Problem | Solution | Score: 10
- Weather Observation Station 1 | Problem | Solution | Score: 15
- Weather Observation Station 3 | Problem | Solution | Score: 10
- Weather Observation Station 4 | Problem | Solution | Score: 10
- Weather Observation Station 5 | Problem | Solution | Score: 30
- Weather Observation Station 6 | Problem | Solution | Score: 10
- Weather Observation Station 7 | Problem | Solution | Score: 10
- Weather Observation Station 8 | Problem | Solution | Score: 15
- Weather Observation Station 9 | Problem | Solution | Score: 10
- Weather Observation Station 10 | Problem | Solution | Score: 10
- Weather Observation Station 11 | Problem | Solution | Score: 15
- Weather Observation Station 12 | Problem | Solution | Score: 15
- Higher Than 75 Marks | Problem | Solution | Score: 15
- Employee Names | Problem | Solution | Score: 10
- Employee Salaries | Problem | Solution | Score: 10
- Advanced Select
- Aggregation
- Revising Aggregations - The Count Function | Problem | Solution | Score: 10
- Revising Aggregations - The Sum Function | Problem | Solution | Score: 10
- Revising Aggregations - Averages | Problem | Solution | Score: 10
- Average Population | Problem | Solution | Score: 10
- Japan Population | Problem | Solution | Score: 10
- Population Density Difference | Problem | Solution | Score: 10
- The Blunder | Problem | Solution | Score: 15
- Top Earners | Problem | Solution | Score: 20
- Weather Observation Station 2 | Problem | Solution | Score: 15
- Weather Observation Station 13 | Problem | Solution | Score: 10
- Weather Observation Station 14 | Problem | Solution | Score: 10
- Weather Observation Station 15 | Problem | Solution | Score: 15
- Weather Observation Station 16 | Problem | Solution | Score: 10
- Weather Observation Station 17 | Problem | Solution | Score: 15
- Weather Observation Station 18 | Problem | Solution | Score: 25
- Weather Observation Station 19 | Problem | Solution | Score: 30
- Weather Observation Station 20 | Problem | Solution | Score: 40
- Basic Join
- Basic Select
- Tutorials
- 10 Days of Statistics
- Day 0 - Mean, Median, and Mode | Problem | Solution | Score: 30
- Day 0 - Weighted Mean | Problem | Solution | Score: 30
- Day 1 - Quartiles | Problem | Solution | Score: 30
- Day 1 - Interquartile Range | Problem | Solution | Score: 30
- Day 1 - Standard Deviation | Problem | Solution | Score: 30
- Day 4 - Binomial Distribution I | Problem | Solution | Score: 30
- Day 4 - Binomial Distribution II | Problem | Solution | Score: 30
- Day 4 - Geometric Distribution I | Problem | Solution | Score: 30
- Day 4 - Geometric Distribution II | Problem | Solution | Score: 30
- Day 5 - Poisson Distribution I | Problem | Solution | Score: 30
- Day 5 - Poisson Distribution II | Problem | Solution | Score: 30
- Day 5 - Normal Distribution I | Problem | Solution | Score: 30
- Day 5 - Normal Distribution II | Problem | Solution | Score: 30
- Day 6 - The Central Limit Theorem I | Problem | Solution | Score: 30
- Day 6 - The Central Limit Theorem II | Problem | Solution | Score: 30
- Day 6 - The Central Limit Theorem III | Problem | Solution | Score: 30
- 10 Days of Statistics