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54 problems total

Array (1905)Sorting (440)Depth First Search (316)Database (301)Breadth First Search (241)Tree (240)Stack (172)Graph Theory (169)Linked List (81)Monotonic Stack (67)Queue (50)Recursion (48)Shortest Path (33)
All Topics(4301)Algorithms(3944)Database(305)Networking(0)Object Oriented Design(31)Programming Languages(5)System Design(0)

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TitleDifficultyVideosCompanies
BST Floor and Ceilingeasy-
oracle
Find the Index of the First Occurrence in a Stringeasy-
adobeamazonapple
Two Sumeasy
adobeaetionaffirm
Palindrome Numbereasy
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Roman To Integereasy
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Longest Common Prefix in array of stringeasy-
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Valid Parentheseseasy
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Merge Two Sorted Linked Listseasy
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Remove duplicates from Sorted Array 1easy
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Add Binary Stringseasy-
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Climbing Stairs - Take atmost 2 Stepseasy
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Merge Two Sorted Arrayseasy-
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Binary Tree Inorder Traversaleasy-
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Symmetric Binary Treeeasy-
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Convert Sorted Array to height-balanced Binary Search Treeeasy
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Path Sum 1 - Check if root to leaf path existseasy-
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Pascal’s Triangle 2 - Return nth roweasy-
amazongoldman-sachsgoogle
Best Time To Buy And Sell Stock 1 - only one transactioneasy
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Valid Palindromeeasy
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Single Number 1 - All elements except one occur twiceeasy
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Linked List Cycle 1 - Detect Cycleeasy
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Intersection of Two Linked Listseasy-
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Missing Rangeseasy-
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Majority Element - Boyer–Moore majority vote algorithmeasy-
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Tenth Line Problemeasy-
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Isomorphic Stringseasy
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Reverse Linked Listeasy
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Contains Duplicate 1 - Check if array has duplicateseasy
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Implement Queue using Stackseasy-
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Valid Anagrameasy
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Shortest Word Distance 1easy-
amazongooglelinkedin
Missing Numbereasy
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Move Zeroes at the end of arrayeasy-
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Reverse Stringeasy
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Intersection of Two Arrays 1 - Unique Elementseasy
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Intersection of Two Arrays 2 - Duplicates allowedeasy-
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Fizz Buzzeasy-
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Add Stringseasy-
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Next Greater Element 1easy-
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Diameter Of a Binary Treeeasy-
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Minimum Index Sum of Two Listseasy-
oracleyelp
Merge Two Binary Treeseasy-
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Design HashMapeasy-
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Rotate Stringeasy-
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Most Common Wordeasy-
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Rectangle Overlapeasy-
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Backspace String Compareeasy-
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Middle of the linked listeasy
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Sort Array By Parityeasy-
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Range Sum of BSTeasy-
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