DSA Cheatsheet Curated list (Leetcode)

Name: PepHub
Brand: PepHub

Prasun Das| June 14, 2023 at 7:06 AM | 5 minutes Read

If you're looking to prepare for a job in the tech industry, Data Structures and Algorithms (DSA) are essential to master. Practising problems on platforms like LeetCode is one of the best ways to prepare for DSA. However, with thousands of problems available, it can be overwhelming to choose which ones to solve. This is where Pephub's DSA LeetCode problems sheet comes in handy.

Curated DSA LeetCode Problems Sheet:

Category	Name	Link
Arrays	Two Sum	https://leetcode.com/problems/two-sum/
Arrays	Best Time to Buy and Sell Stock	https://leetcode.com/problems/best-time-to-buy-and-sell-stock/
Arrays	Contains Duplicate	https://leetcode.com/problems/contains-duplicate/
Arrays	Product of Array Except Self	https://leetcode.com/problems/product-of-array-except-self/
Arrays	Maximum Subarray	https://leetcode.com/problems/maximum-subarray/
Arrays	Maximum Product Subarray	https://leetcode.com/problems/maximum-product-subarray/
Arrays	Find Minimum in Rotated Sorted Array	https://leetcode.com/problems/find-minimum-in-rotated-sorted-array/
Arrays	Search in Rotated Sorted Array	https://leetcode.com/problems/search-in-rotated-sorted-array/
Arrays	3Sum	https://leetcode.com/problems/3sum/
Arrays	Container With Most Water	https://leetcode.com/problems/container-with-most-water/
Binary	Sum of Two Integers	https://leetcode.com/problems/sum-of-two-integers/
Binary	Number of 1 Bits	https://leetcode.com/problems/number-of-1-bits/
Binary	Counting Bits	https://leetcode.com/problems/counting-bits/
Binary	Missing Number	https://leetcode.com/problems/missing-number/
Binary	Reverse Bits	https://leetcode.com/problems/reverse-bits/
Stack	Valid Parenthesis	https://leetcode.com/problems/valid-parentheses/
Stack	Longest Common Subsequence	https://practice.geeksforgeeks.org/problems/maximum-rectangular-area-in-a-histogram-1587115620/1
Stack	Next Greater Element	https://leetcode.com/problems/next-greater-element-i/
Stack	Next Greater Element	https://leetcode.com/problems/next-greater-element-i/
Stack	Next Greater Element	https://leetcode.com/problems/next-greater-element-i/
Dynamic Programming	Longest Common Subsequence	https://leetcode.com/problems/longest-common-subsequence/
Dynamic Programming	Word Break Problem	https://leetcode.com/problems/word-break/
Dynamic Programming	Combination Sum	https://leetcode.com/problems/combination-sum/
Dynamic Programming	House Robber	https://leetcode.com/problems/house-robber/
Dynamic Programming	House Robber II	https://leetcode.com/problems/house-robber-ii/
Dynamic Programming	Decode Ways	https://leetcode.com/problems/decode-ways/
Dynamic Programming	Unique Paths	https://leetcode.com/problems/unique-paths/
Dynamic Programming	Jump Game	https://leetcode.com/problems/jump-game/
Graph	Clone Graph	https://leetcode.com/problems/clone-graph/
Graph	Course Schedule	https://leetcode.com/problems/course-schedule/
Graph	Pacific Atlantic Water Flow	https://leetcode.com/problems/pacific-atlantic-water-flow/
Graph	Number of Islands	https://leetcode.com/problems/number-of-islands/
Graph	Longest Consecutive Sequence	https://leetcode.com/problems/longest-consecutive-sequence/
Graph	Alien Dictionary (Leetcode Premium)	https://leetcode.com/problems/alien-dictionary/
Graph	Graph Valid Tree (Leetcode Premium)	https://leetcode.com/problems/graph-valid-tree/
Graph	Number of Connected Components in an Undirected Graph (Leetcode Premium)	https://leetcode.com/problems/number-of-connected-components-in-an-undirected-graph/
Interval	Insert Interval	https://leetcode.com/problems/insert-interval/
Interval	Merge Intervals	https://leetcode.com/problems/merge-intervals/
Interval	Non-overlapping Intervals	https://leetcode.com/problems/non-overlapping-intervals/
Interval	Meeting Rooms (Leetcode Premium)	https://leetcode.com/problems/meeting-rooms/
Interval	Meeting Rooms II (Leetcode Premium)	https://leetcode.com/problems/meeting-rooms-ii/
Linked List	Reverse a Linked List	https://leetcode.com/problems/reverse-linked-list/
Linked List	Detect Cycle in a Linked List	https://leetcode.com/problems/linked-list-cycle/
Linked List	Merge Two Sorted Lists	https://leetcode.com/problems/merge-two-sorted-lists/
Linked List	Merge K Sorted Lists	https://leetcode.com/problems/merge-k-sorted-lists/
Linked List	Remove Nth Node From End Of List	https://leetcode.com/problems/remove-nth-node-from-end-of-list/
Linked List	Reorder List	https://leetcode.com/problems/reorder-list/
Matrix	Set Matrix Zeroes	https://leetcode.com/problems/set-matrix-zeroes/
Matrix	Spiral Matrix	https://leetcode.com/problems/spiral-matrix/
Matrix	Rotate Image	https://leetcode.com/problems/rotate-image/
Matrix	Word Search	https://leetcode.com/problems/word-search/
String	Longest Substring Without Repeating Characters	https://leetcode.com/problems/longest-substring-without-repeating-characters/
String	Longest Repeating Character Replacement	https://leetcode.com/problems/longest-repeating-character-replacement/
String	Minimum Window Substring	https://leetcode.com/problems/minimum-window-substring/
String	Valid Anagram	https://leetcode.com/problems/valid-anagram/
String	Group Anagrams	https://leetcode.com/problems/group-anagrams/
String	Valid Parentheses	https://leetcode.com/problems/valid-parentheses/
String	Valid Palindrome	https://leetcode.com/problems/valid-palindrome/
String	Longest Palindromic Substring	https://leetcode.com/problems/longest-palindromic-substring/
String	Palindromic Substrings	https://leetcode.com/problems/palindromic-substrings/
String	Encode and Decode Strings (Leetcode Premium)	https://leetcode.com/problems/encode-and-decode-strings/
Tree	Maximum Depth of Binary Tree	https://leetcode.com/problems/maximum-depth-of-binary-tree/
Tree	Same Tree	https://leetcode.com/problems/same-tree/
Tree	Invert/Flip Binary Tree	https://leetcode.com/problems/invert-binary-tree/
Tree	Binary Tree Maximum Path Sum	https://leetcode.com/problems/binary-tree-maximum-path-sum/
Tree	Binary Tree Level Order Traversal	https://leetcode.com/problems/binary-tree-level-order-traversal/
Tree	Serialize and Deserialize Binary Tree	https://leetcode.com/problems/serialize-and-deserialize-binary-tree/
Tree	Subtree of Another Tree	https://leetcode.com/problems/subtree-of-another-tree/
Tree	Construct Binary Tree from Preorder and Inorder Traversal	https://leetcode.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal/
Tree	Validate Binary Search Tree	https://leetcode.com/problems/validate-binary-search-tree/
Tree	Kth Smallest Element in a BST	https://leetcode.com/problems/kth-smallest-element-in-a-bst/
Tree	Lowest Common Ancestor of BST	https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-search-tree/
Tree	Implement Trie (Prefix Tree)	https://leetcode.com/problems/implement-trie-prefix-tree/
Tree	Add and Search Word	https://leetcode.com/problems/add-and-search-word-data-structure-design/
Tree	Word Search II	https://leetcode.com/problems/word-search-ii/
Heap	Merge K Sorted Lists	https://leetcode.com/problems/merge-k-sorted-lists/
Heap	Top K Frequent Elements	https://leetcode.com/problems/top-k-frequent-elements/
Heap	Find Median from Data Stream	https://leetcode.com/problems/find-median-from-data-stream/

Pephub has curated a comprehensive list of beginner-friendly LeetCode problems that cover every topic and question type that one can expect in a technical interview. The list is not exhaustive but is comprehensive enough to crack top MNCs both on-campus and off-campus.

The problems in the list are carefully chosen to cover all essential topics, including arrays, linked lists, stacks, queues, trees, graphs, dynamic programming, and more. The list also includes problems of varying difficulty levels, ranging from easy to hard, allowing you to start with simpler problems and gradually move towards the more challenging ones.

Why Use Pephub's DSA LeetCode Problems Sheet?

Comprehensive Coverage: The list covers every essential topic and question type, making it an excellent resource for beginners.

Difficulty Levels: The problems in the listed range from easy to hard, allowing you to start with simpler problems and gradually move towards the more challenging ones.

Beginner-Friendly: The problems in the list are beginner-friendly, making it easy for those who are new to DSA to get started.

Curated List: The problems in the list are carefully chosen to ensure that you get the most out of your preparation time.

We would like to give a big shoutout to Soumava Banerjee for his incredible help in creating the Pephub DSA cheatsheet. This cheatsheet is solely dedicated to boosting your DSA skills for both on and off-campus placements.

If you have any questions or need further assistance, don't hesitate to reach out to us. We're here to help you succeed. Happy coding and best of luck on your DSA journey!

#dsa cheatsheet#leetcode#interview tips and tricks#interview preparation#dsa-prep

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DSA Cheatsheet Curated list (Leetcode)

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