ds-algo-solutions
ds-algo-solutions copied to clipboard
Published
20 hours ago •
adityabisoi
adityabisoi
A collection of solutions for Hackerrank data structures and algorithm problems in Python
✨DS - ALGO - SOLUTIONS✨
Be sure to ⭐ this repo so you can keep up to date on any daily progress!
Table of Contents
- About The Project
- Contribution Instructions
- HackerRank Solutions
- A cool & collective resource
- Contributors
- Open source Events
About the project
|
A collection of solutions for HackerRank data structures and algorithm problems in Python, JAVA, and CPP. This community-owned project aims to bring together the solutions for the DS & Algo problems across various platforms, along with the resources for learning them. Problems from Leetcode will be included soon in the project. |
Contribution Instructions
- Please read contribution guidelines for contributing to the project.
HackerRank
HackerRank is a place where programmers from all over the world come together to solve problems in a wide range of Computer Science domains such as algorithms, machine learning, or artificial intelligence, as well as to practice different programming paradigms like functional programming. 🚀
| Topic | Question | Difficulty | CPP | JAVA | Python |
|---|---|---|---|---|---|
| Arrays | |||||
| 2D Array-DS | Easy | View | View | View | |
| Dynamic Array | Easy | View | View | View | |
| Left Rotation | Easy | View | View | View | |
| Arrays-DS | Easy | View | View | View | |
| Sparse Arrays | Medium | View | View | View | |
| Array Manipulation | Hard | View | View | View | |
| Linked Lists | |||||
| Print the Elements of a Linked List | Easy | View | View | View | |
| Insert a node at the head of a linked list | Easy | View | View | View | |
| Insert a Node at the Tail of a Linked List | Easy | View | View | View | |
| Insert a node at a specific position in a linked list | Easy | View | View | View | |
| Delete a Node | Easy | View | View | View | |
| Print in Reverse | Easy | View | View | View | |
| Compare two linked lists | Easy | View | View | View | |
| Merge two sorted linked lists | Easy | View | View | View | |
| Get Node Value | Easy | View | View | View | |
| Reverse a linked list | Easy | View | View | View | |
| Delete duplicate-value nodes from a sorted linked list | Easy | View | View | View | |
| Find Merge Point of Two Lists | Easy | View | View | View | |
| Cycle Detection | Easy | View | View | View | |
| Inserting a Node Into a Sorted Doubly Linked List | Easy | View | View | View | |
| Reverse a doubly linked list | Easy | View | View | View | |
| Stacks | |||||
| Maximum Element | Easy | View | View | View | |
| Balanced Brackets | Medium | View | View | View | |
| Equal Stacks | Easy | View | View | View | |
| Largest Rectangle | Medium | View | View | View | |
| Simple Text Editor | Medium | View | View | View | |
| Waiter | Medium | View | View | View | |
| Poisonous Plants | Hard | View | View | View | |
| AND xor OR | Hard | View | View | View | |
| Queues | |||||
| Queue using Two Stacks | Medium | View | View | View | |
| Castle on the Grid | Medium | View | View | View | |
| Down to Zero II | Medium | View | View | View | |
| Truck Tour | Hard | View | View | View | |
| Queries with Fixed Length | Hard | View | View | View | |
| Heap | |||||
| QHEAP1 | Easy | View | View | View | |
| Jesse and Cookies | Easy | View | View | View | |
| Find the Running Median | Hard | View | View | View | |
| Minimum Average Waiting Time | Hard | View | View | View | |
| Trees | |||||
| Tree - Top View | Easy | View | View | View | |
| Tree - Preorder Traversal | Easy | View | View | View | |
| Tree - Inorder Traversal | Easy | View | View | View | |
| Tree - Postorder Traversal | Easy | View | View | View | |
| Tree - Level Order Traversal | Easy | View | View | View | |
| Tree - Height of a Binary Tree | Easy | View | View | View | |
| Binary Search Tree - Insertion | Easy | View | View | View | |
| Binary Search Tree - Lowest Common Ancestor | Easy | View | View | View | |
| Is This a Binary Search Tree | Medium | View | View | View | |
| Swap Nodes [Algo] | Medium | View | View | View | |
| Tree - Huffman Decoding | Medium | View | View | View | |
| Tree: Square-Ten Tree | Hard | View | View | View | |
| Balanced Forest | Hard | View | View | View | |
| Kitty's Calculations on a Tree | Advanced | View | View | View | |
| Trie | |||||
| Contacts | Medium | View | View | View | |
| No Prefix Set | Hard | View | View | View | |
| Algorithms | |||||
| Mark and Toys | Easy | View | View | View | |
| Grading Students | Easy | View | View | View | |
| Apple and Orange | Easy | View | View | View | |
| Number Line Jumps | Easy | View | View | View | |
| Encryption | Medium | View | View | View | |
| Cut the sticks | Easy | View | View | View | |
| Breaking the Records | Easy | View | View | View | |
| Sales by Match | Easy | View | View | View | |
| Climbing the Leaderboard | Medium | View | View | View | |
| Diagonal Difference | Easy | View | View | View | |
| Queen's Attack II | Medium | View | View | View | |
| Electronics Shop | Easy | View | View | View | |
| The Coin Change Problem | Medium | View | View | View | |
| Angry Professor | Easy | View | View | View | |
| Migratory Birds | Easy | View | View | View | |
| Mini-Max Sum | Easy | View | View | View | |
| Dorsey Thief | Advanced | View | View | View | |
| Luck Balance | Easy | View | View | View | |
| Fair Cut | Medium | View | View | View | |
| Prime XOR | Medium | View | View | View | |
| The Great XOR | Medium | View | View | View | |
| Sansa and XOR | Medium | View | View | View | |
| Xor-sequence | Medium | View | View | View | |
| Sherlock and the Valid String | Medium | View | View | View | |
| Bigger is Greater | Medium | View | View | View | |
| Utopian Tree | Easy | View | View | View | |
| Sequence Equation | Easy | View | View | View | |
| Find Digits | Easy | View | View | View | |
| Modified Kaprekar Numbers | Easy | View | View | View | |
| Taum and B'day | Easy | View | View | View | |
| Jumping on the Clouds | Easy | View | View | View | |
| Repeated String | Easy | View | View | View | |
| Jim and the Orders | Easy | View | View | View | |
| AND Product | Medium | View | View | View | |
| Sherlock and Array | Easy | View | View | View | |
| Ice Cream Parlor | Easy | View | View | View | |
| Missing Numbers | Easy | View | View | View | |
| Sherlock and The Beast | Easy | View | View | View | |
| Permuting Two Arrays | Easy | View | View | View | |
| Insertion Sort - Part 1 | Easy | View | View | View | |
| Insertion Sort - Part 2 | Easy | View | View | View | |
| Counting Sort 2 | Easy | View | View | View | |
| Making Anagrams | Easy | View | View | View | |
| The Love-Letter Mystery | Easy | View | View | View | |
| Beautiful Binary String | Easy | View | View | View | |
| HackerRank in a String! | Easy | View | View | View | |
| Funny String | Easy | View | View | View | |
| Gemstones | Easy | View | View | View | |
| Pangrams | Easy | View | View | View | |
| Largest Permutation | Easy | View | View | View | |
| Running Time of Algorithms | Easy | View | View | View | |
| Correctness and the Loop Invariant | Easy | View | View | View | |
| The Hurdle Race | Easy | View | View | View | |
| Designer PDF Viewer | Easy | View | View | View | |
| The Power Sum | Medium | View | View | View | |
| Crossword Puzzle | Medium | View | View | View | |
| Closest Numbers | Easy | View | View | View | |
| CamelCase | Easy | View | View | View | |
| Lonely Integer | Easy | View | View | View | |
| Sum vs XOR | Easy | View | View | View | |
| Maximizing XOR | Easy | View | View | View | |
| Birthday Cake Candles | Easy | View | View | View | |
| Sub-array Division | Easy | View | View | View | |
| Bill Division | Easy | View | View | View | |
| Marc's Cakewalk | Easy | View | View | View | |
| Flipping Bits | Easy | View | View | View | |
| The Longest Common Subsequence | Medium | View | View | View | |
| Halloween Sale | Easy | View | View | View | |
| Chocolate Feast | Easy | View | View | View | |
| Save the Prisoner! | Easy | View | View | View | |
| Library Fine | Easy | View | View | View | |
| Non-Divisible Subset | Medium | view | View | View | |
| Candies | Medium | View | View | View | |
| 3-D Surface Area | Medium | View | View | View | |
| Viral Advertising | Easy | View | View | View | |
| Minimum Loss | Medium | View | View | View | |
| Minimum Absolute Difference in an Array | Medium | View | View | View | |
| Beautiful Pairs | Easy | View | View | View | |
| Greedy Florist | Medium | View | View | View | |
| Priyanka and Toys | Easy | View | View | View | |
| Compare the Triplets | Easy | View | View | View | |
| ACM ICPC Team | Easy | View | View | View | |
| Beautiful Days at the Movies | Easy | View | View | View | |
| Fibonacci Modified | Medium | View | View | View | |
| Knapsack | Medium | View | View | View | |
| The Bomberman Game | Medium | View | View | View | |
| Organizing Containers of Balls | Easy | View | View | View | |
| Two Strings | Easy | View | View | View | |
| Game of Thrones - I | Easy | View | View | View | |
| String Construction | Easy | View | View | View | |
| Highest Value Palindrome | Medium | View | View | View | |
| Lily's Homework | Medium | View | View | View | |
| Caesar Cipher | Easy | View | View | View | |
| Two Characters | Easy | View | View | View | |
| Weighted Uniform Strings | Easy | View | View | View | |
| Manasa and Stones | Easy | View | View | View | |
| Happy Ladybugs | Easy | View | View | View | |
| Cavity Map | Easy | View | View | View | |
| Big Sorting | Easy | View | View | View | |
| Quicksort 1 - Partition | Easy | View | View | View | |
| Reverse Shuffle Merge | Advanced | View | View | View | |
| Goodland Electricity | Medium | View | View | View | |
| Max Min | Medium | View | View | View | |
| Super Reduced String | Easy | View | View | View | |
| Strong Password | Easy | View | View | View | |
| Drawing Book | Easy | View | View | View | |
| Lisa's Workbook | Easy | View | View | View | |
| Append and Delete | Easy | View | View | View | |
| Day of the Programmer | Easy | View | View | View | |
| Picking Numbers | Easy | View | View | View | |
| A Chessboard Game | Easy | View | View | View | |
| Game of Stones | Easy | View | View | View | |
| Tower Breakers | Easy | View | View | View | |
| Circular Array Rotation | Easy | View | View | View | |
| Separate the Numbers | Easy | View | View | ||
| Palindrome Index | Easy | View | View | ||
| Counting Sort 1 | Easy | View | View | View | |
| Find the Median | Easy | View | View | View | |
| Red John is Back | Medium | View | View | View | |
| Stock Maximize | Medium | View | View | View | |
| Between Two Sets | Easy | View | View | View | |
| Circular Array Rotation | Easy | View | View | ||
| Solve Me First | Easy | View | View | View | |
| Simple Array Sum | Easy | View | View | View | |
| A Very Big Sum | Easy | View | View | View | |
| Staircase | Easy | View | View | View | |
| Plus Minus | Easy | View | View | View | |
| Time Conversion | Easy | View | View | View | |
| Divisible Sum Pairs | Easy | View | View | View | |
| Flatland Space Stations | Easy | View | View | View | |
| Nimble Game | Easy | View | View | View | |
| Misère Nim | Easy | View | View | View | |
| Introduction to Nim Game | Easy | View | View | View | |
| Alice and Bob's Silly Game | Medium | View | View | View | |
| Tower Breakers, Revisited! | Medium | View | View | View | |
| Poker Nim | Easy | View | View | View | |
| Tower Breakers, Again! | Medium | View | View | ||
| Zero-Move Nim | Medium | View | |||
| Chessboard Game, Again! | Medium | View | |||
| Almost Sorted | Medium | View | View | ||
| Sherlock and Anagrams | Medium | View | View | ||
| Contest Problems | |||||
| Squares of a Sorted Array | Medium | View | View | View | |
| Disjoint Sets | |||||
| Merging Communities | Easy | View | View | View | |
| Components in a Graph | Medium | View | View | View | |
| Super Maximum Cost Queries | Hard | View | View | View | |
| Kundu and Tree | Hard | View | View | View |
A cool and collective resource
Contributors
✨ Thanks goes to these wonderful people (emoji key):
This project follows the all-contributors specification. Contributions of any kind welcome!
Help & support
If you are stuck somewhere or do not understand what to do, feel free to reach out to mentors in the official Gitter Channel.
Open Source Events
Metadata
43
Stars
108
Forks
Watchers
Owner
adityabisoi
Metadata
A collection of solutions for Hackerrank data structures and algorithm problems in Python