Title Difficulty Companies Videos
Convert Sorted List into a height-balanced Binary search Tree Medium amazon bloomberg facebook google lyft microsoft oracle vmware zenefits
Count of Smaller Numbers After Self Hard adobe amazon apple bloomberg facebook google microsoft oracle uber
Count Primes Medium adobe amazon apple bloomberg capital-one ebay facebook goldman-sachs google intel microsoft oracle yahoo yandex
Different Ways to Add Parentheses Medium amazon cisco citadel facebook google
Find Median from Data Stream Hard adobe amazon apple atlassian bloomberg bytedance citadel ebay expedia facebook goldman-sachs google microsoft netflix oracle pinterest qualtrics salesforce snapchat twitter uber vmware yahoo
Find Peak Element in a Given Array Medium amazon apple bloomberg bytedance facebook google ixl lyft microsoft quora uber vmware yahoo
Find the Closest Palindrome Hard amazon facebook google microsoft nutanix pinterest uber yelp
Fisher-Yates Shuffle Medium facebook
Fraction to Recurring Decimal Medium airbnb amazon apple cohesity facebook goldman-sachs google ixl microsoft rubrik uber
Generate Nth Fibonacci Number Easy amazon apple barclays facebook mathworks microsoft sap yahoo
Jump Game 2 - Get min jumps Medium adobe amazon apple facebook google huawei microsoft nutanix oracle uber
Knight Dialer Medium box citadel facebook google microsoft pinterest twilio
Kth Permutation Sequence of Numbers 1 to N Hard amazon apple facebook google microsoft twitter yahoo
Largest Rectangle in Histogram Hard adobe amazon bloomberg facebook flipkart google microsoft twitter
Least Number of Perfect Squares that Sums to n Medium adobe amazon apple cisco ebay facebook godaddy google grammarly linkedin lyft microsoft uber yandex
Maximum Size Subarray Sum equals K Medium amazon facebook google microsoft palantir-technologies
Merge K Sorted Lists Hard adobe airbnb alibaba amazon apple atlassian audible bloomberg box bytedance cisco cohesity cruise-automation ebay facebook goldman-sachs google indeed ixl linkedin lyft mathworks microsoft nvidia oracle salesforce sap tableau twitter uber vmware wish yahoo yandex zillow
Number of trailing zeros in a factorial Medium amazon bloomberg facebook microsoft wish
Odd Even Linked List - Bring odd nodes first and even later Medium amazon bloomberg capital-one ebay facebook google microsoft
Paint House 2 - N houses with k colors with no two adjacent houses with same color color Hard facebook google linkedin snapchat
Palindrome Pairs Hard airbnb amazon apple bloomberg facebook google square uber
Palindrome Permutation Easy amazon apple bloomberg facebook google microsoft uber
Partition to K Equal Sum Subsets Medium amazon bytedance ebay facebook google houzz linkedin microsoft pinterest vmware
Peeking Iterator Medium amazon apple atlassian ebay facebook google microsoft oracle yahoo
Populate next pointer to right node in Binary Tree Medium amazon bloomberg facebook google microsoft oracle
Range Sum Query – Mutable Medium amazon facebook google twitter
Range Sum Query 2D - Immutable Medium amazon apple cruise-automation facebook google houzz lyft microsoft vmware
Reconstruct Itinerary Hard amazon apple bloomberg citadel facebook goldman-sachs google microsoft qualtrics snapchat square twilio uber yandex yelp
Rectangle Area - Total area of two rectangles Medium apple facebook microsoft nvidia juniper
Remove Invalid Parentheses Problem Hard amazon apple bloomberg facebook google houzz ponyai postmates uber
Remove K Digits Medium adobe amazon bloomberg bytedance didi facebook google microsoft nutanix oracle snapchat vmware
Remove Outermost Parentheses Easy apple facebook google
Reverse Bits Easy airbnb amazon apple facebook google samsung tencent
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
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
Sort Characters By Frequency Medium amazon bloomberg expedia facebook google linkedin uber twitter
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
Strobogrammatic Number 1 - Check if strobogrammatic Easy cisco facebook google
Strobogrammatic Number 2 - Generate for length n Medium cisco facebook google twitter
Strobogrammatic Number 3 - Count in Range Hard facebook google
Sudoku Solver Hard adobe amazon apple arista-networks doordash dropbox expedia facebook google microsoft oracle riot-games roblox snapchat uber vmware wish
Surrounded Regions Medium amazon ebay facebook google splunk uber
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 Hard adobe amazon apple facebook google linkedin microsoft tripadvisor
Valid Parenthesis String Medium alibaba amazon bloomberg facebook google
Valid Sudoku Medium adobe amazon apple bloomberg cruise-automation doordash facebook google microsoft oracle pinterest roblox salesforce snapchat twitter uber vmware