Title Difficulty Companies Videos
Reconstruct Itinerary Problem Hard amazon apple bloomberg citadel facebook goldman-sachs google microsoft qualtrics snapchat square twilio uber yandex yelp
Remove K Digits Problem Medium adobe amazon bloomberg bytedance didi facebook google microsoft nutanix oracle snapchat vmware
Reverse Words in a String 2 Medium amazon google microsoft uber vmware
Reverse Words in a String 3 Easy amazon apple bloomberg microsoft paypal salesforce snapchat yahoo zappos
Rotate n x n matrix by 90 degrees Medium adobe akuna-capital amazon apple bloomberg cisco facebook google groupon houzz lyft microsoft nvidia palantir palantir-technologies quora salesforce uber wish yandex
Search in Rotated Sorted Array 2 - Check if number exists - Duplicates allowed Medium adobe amazon bloomberg facebook google microsoft
Select Copy Paste Problem 1 - Minimum operations Medium bloomberg microsoft
Serialize and Deserialize Binary Tree Hard amazon apple bloomberg citadel ebay expedia facebook google groupon indeed linkedin microsoft oracle qualtrics quora salesforce snapchat tableau uber vmware yahoo
Shortest Palindrome 1 - Prepending characters Hard adobe amazon bloomberg facebook google microsoft oracle pocket-gems
Spiral Matrix 1 - Return Medium adobe amazon apple bloomberg bytedance cisco drawbridge ebay epic-systems facebook goldman-sachs google hulu linkedin microsoft oracle paypal quip robinhood snapchat uber visa
Square root of an integer Easy amazon apple bloomberg facebook google huawei linkedin lyft microsoft qualtrics uber wayfair
Sudoku Solver Problem Hard adobe amazon apple arista-networks doordash dropbox expedia facebook google microsoft oracle riot-games roblox snapchat uber vmware wish
Swap Nodes in Pairs Medium adobe amazon apple bloomberg ebay facebook google lyft microsoft oracle sap uber
Unique BSTs 2 - Generate Medium adobe amazon apple facebook microsoft yahoo
Valid Number Problem Hard adobe amazon apple facebook google linkedin microsoft tripadvisor
Valid Sudoku Problem Medium adobe amazon apple bloomberg cruise-automation doordash facebook google microsoft oracle pinterest roblox salesforce snapchat twitter uber vmware
Validate Binary Search Tree Medium adobe amazon apple asana atlassian bloomberg bytedance capital-one ebay facebook goldman-sachs google linkedin mathworks microsoft oracle salesforce sap tripadvisor uber visa vmware yahoo yandex
Word Break 2 - Construct a sentence Hard amazon apple audible bloomberg bookingcom dropbox ebay facebook google microsoft oracle pinterest snapchat twitter uber zillow
Zigzag Iterator Medium amazon apple cruise-automation facebook google microsoft yandex
Validate IP Address Problem Medium amazon cisco facebook google microsoft twitter uber
Implement Rand10() Using Rand7() Medium apple bloomberg bytedance linkedin microsoft
Sliding Window Median Hard amazon apple facebook google microsoft snapchat spotify
Permutation in String Problem Medium amazon bloomberg facebook google lyft microsoft uber yahoo yandex
Find Duplicate Subtrees Medium amazon bloomberg facebook google lyft microsoft oracle uber
Most Common Word Problem Easy amazon apple google microsoft oracle
Max Area of Island Problem Medium adobe affirm amazon apple bloomberg bytedance cruise-automation doordash facebook google intuit mathworks microsoft oracle palantir-technologies qualtrics twitch uber wish zillow
Design Skiplist Problem Hard ebay google microsoft pure-storage twitter
Count Odd Numbers in an Interval Range Problem Easy microsoft
Sum of Subarray Minimums Problem Medium apple hulu microsoft
Check Completeness of a Binary Tree Medium amazon bytedance facebook google microsoft oracle
Number of Provinces Medium adobe amazon atlassian bloomberg drawbridge ebay facebook goldman-sachs google linkedin microsoft pocket-gems salesforce twitter two-sigma uber
Shortest Path in Binary Matrix Medium amazon facebook google microsoft uber
Subarray Sum Equals K Medium adobe amazon apple bloomberg ebay expedia facebook goldman-sachs google indeed linkedin microsoft oracle quora snapchat twilio uber wish yahoo yandex
Print Binary Tree Problem Medium facebook linkedin microsoft poynt uber
Island Perimeter Problem Easy amazon apple bloomberg facebook google microsoft
Minimum Number of Arrows to Burst Balloons Medium amazon facebook google microsoft quora
All O`one Data Structure Problem Hard amazon bloomberg facebook google linkedin microsoft uber
Encode N-ary Tree to Binary Tree Hard microsoft
Flatten a Multilevel Doubly Linked List Problem Medium amazon apple bloomberg facebook google microsoft uber
Add Strings Problem Easy adobe airbnb amazon apple bloomberg bytedance facebook google microsoft nvidia oracle snapchat square
Convert Number to Hexadecimal Number Problem Easy facebook microsoft
Trapping Rain Water 2 Hard amazon apple bytedance facebook google microsoft twitter
Daily Temperatures Medium adobe amazon apple bloomberg cisco expedia facebook goldman-sachs google linkedin microsoft nvidia uber zillow
Leaf-Similar Trees Problem Easy amazon atlassian facebook google microsoft
Path Sum 3 - Count paths from parent to child Medium amazon bloomberg facebook microsoft oracle quora uber zillow
Maximum Subarray Sum Medium adobe alibaba amazon apple asana atlassian bloomberg bytedance capital-one cisco citadel ebay expedia facebook goldman-sachs google ibm intel jpmorgan linkedin microsoft morgan-stanley nvidia oracle palantir-technologies paypal qualcomm salesforce sap two-sigma uber visa wayfair yahoo zillow
Find the Index of the First Occurrence in a String Easy adobe amazon apple bloomberg citadel dropbox ebay facebook google microsoft oracle paypal pocket-gems vmware yahoo yandex
Time Based Key-Value Store Problem Medium amazon apple atlassian databricks facebook flexport google linkedin lyft microsoft netflix oracle square stripe sumologic twitter uber vmware zillow
Convert Binary Search Tree to Sorted Doubly Linked List Medium amazon bloomberg databricks facebook google lyft microsoft oracle uber vmware
Sparse Matrix Multiplication Medium amazon apple bloomberg facebook google linkedin microsoft snapchat uber