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Leetcode Patterns by Sean Prashad | Leetcode easy solving patterns | DSA patterns | Leetcode master by patterns
Leetcode Patterns
Background
This repo is intended for any individual wanting to improve their problem
solving skills for software engineering interviews.
Problems are grouped under their respective subtopic, in order to focus on
repeatedly applying common patterns rather than randomly tackling questions.
All questions are available on [leetcode.com] with some requiring [leetcode premium].
Fundamentals
To find the greatest amount of success when practicing, it is highly recommended
to know the methods and runtimes of the following data structures and their
operations:
- Arrays
- Maps
- Linked Lists
- Queues
- Heaps
- Stacks
- Trees
- Graphs
In addition, you should have a good grasp on common algorithms such as:
- Breadth-first search
- Depth-first search
- Binary search
- Recursion
Notes
[This pdf] contains information for the main data structures in Java.
Other useful methods to know include
substring()
https://docs.oracle.com/javase/8/docs/api/java/lang/String.html#substring-int-int-,
toCharArray()
https://docs.oracle.com/javase/8/docs/api/java/lang/String.html#toCharArray--, Math.max()
https://docs.oracle.com/javase/8/docs/api/java/lang/Math.html#max-int-int-,
Math.min()
https://docs.oracle.com/javase/8/docs/api/java/lang/Math.html#min-int-int-, Arrays.fill()
https://docs.oracle.com/javase/8/docs/api/java/util/Arrays.html#fill-int:A-int-
Question List
The entire question list can be found here 🔥✌
https://seanprashad.com/leetcode-patterns/
Above site looks like this with good content:
Solutions
Solutions written in Java can be found in the [solutions] branch.
Suggestions
Think of a question that should/shouldn't be included? Wish there was another feature?
Feel free to open an [issue] with your suggestion!
Acknowledgements
This list is heavily inspired from [Grokking the Coding Interview] with
additional problems extracted from the [Blind 75 list] and this hackernoon article
on [14 patterns to ace any coding interview question].
https://leetcode.com/subscribe/
https://drive.google.com/open?id=1ao4ZA28zzBttDkuS6MLQI52gDs_CJZEm
https://github.com/SeanPrashad/leetcode-patterns/tree/solutions
https://www.educative.io/courses/grokking-the-coding-interview
14 patterns to ace any coding interview question: https://hackernoon.com/14-patterns-to-ace-any-coding-interview-question-c5bb3357f6ed
Reference:
https://github.com/seanprashad/leetcode-patterns
Contributed by: seanprashad (Sean Prashad) (github.com)