Amazon

Title	Difficulty	Companies
Median of Two Sorted Arrays Problem	Hard	adobe airbnb alibaba amazon apple bloomberg bytedance didi dropbox ebay facebook garena godaddy goldman-sachs google houzz huawei jpmorgan microsoft oracle rubrik tencent two-sigma uber visa vmware yahoo yandex zenefits zillow zulily
Subtree of Another Tree Problem	Easy	amazon bloomberg ebay facebook google microsoft samsung
Longest Common Prefix in array of string	Easy	adobe alibaba amazon apple bloomberg cisco ebay facebook google ibm ixl microsoft oracle pinterest quora snapchat splunk twilio visa yelp
Find Minimum in Rotated Sorted Array 1 - No duplicates allowed	Medium	amazon apple bloomberg ebay facebook goldman-sachs google microsoft oracle salesforce uber vmware wish
Set Matrix Zeros Problem	Medium	adobe amazon apple audible docusign expedia facebook microsoft oracle paypal salesforce tripadvisor
Linked List Cycle 2 - Find Start of a Cycle	Medium	adobe amazon apple ebay google linkedin microsoft netapp
Maximal Rectangle	Hard	adobe amazon bloomberg citadel facebook google indeed karat microsoft samsung uber vmware wayfair
Coin Change with Fewest Number of Coins Given Infinite Supply	Medium	adobe affirm airbnb amazon apple blackrock bloomberg bytedance capital-one ebay facebook goldman-sachs google jpmorgan linkedin microsoft oracle paypal sap uber visa vmware yahoo zappos
Array Sorting Problem	Medium	amazon apple bloomberg
Binary Search on Sorted Array	Easy	amazon microsoft
House Robber 1	Medium	adobe airbnb amazon apple bloomberg bytedance cisco ebay expedia goldman-sachs google hbo linkedin microsoft quora uber
Flood Fill Problem	Easy	amazon apple bloomberg facebook google microsoft palantir-technologies qualtrics snapchat uber vmware
3Sum0 - Find three elements in an array that sum to a zero	Medium	adobe akuna-capital alibaba amazon apple baidu bloomberg bytedance cisco citadel citrix coursera doordash ebay expedia facebook goldman-sachs google groupon ibm mathworks microsoft oracle paypal postmates qualtrics quora salesforce samsung servicenow snapchat splunk square tencent uber visa vmware works-applications yahoo yandex zoho
Two Sum	Easy	adobe aetion affirm airbnb alibaba amazon apple audible baidu blackrock bloomberg bookingcom box bytedance cisco citadel cloudera deutsche-bank didi drawbridge dropbox ebay emc expedia facebook factset ge-digital godaddy goldman-sachs google groupon huawei ibm indeed intel intuit jpmorgan linkedin lyft mathworks microsoft morgan-stanley netease nvidia oracle paypal qualcomm quora radius roblox salesforce samsung sap servicenow snapchat splunk spotify tableau tencent twilio twitter uber valve visa vmware wish works-applications yahoo yandex yelp zillow zoho
Meeting Rooms 2 - Minimum Meeting Rooms Required	Medium	amazon apple atlassian bloomberg bookingcom cisco citadel citrix drawbridge ebay expedia facebook godaddy goldman-sachs google lyft microsoft nutanix oracle paypal postmates quora snapchat uber visa yelp
Meeting Rooms 1 - Can person attend all meetings	Easy	amazon bloomberg facebook google microsoft
Maximum Product Subarray	Medium	adobe akuna-capital alibaba amazon bloomberg bytedance facebook google linkedin microsoft oracle uber
Middle of the linked list Problem	Easy	adobe amazon apple cisco goldman-sachs microsoft oracle paypal samsung
Next Permutation	Medium	adobe amazon apple atlassian bloomberg bytedance ebay facebook google houzz jpmorgan microsoft quora rubrik samsung sumologic uber
Find anagrams of a string in another string	Medium	amazon bloomberg facebook goldman-sachs google microsoft oracle robinhood uber
Best Time To Buy And Sell Stock 6 - with-transaction-fee	Medium	amazon bloomberg facebook google
Product of Array Except Self	Medium	adobe amazon apple asana blackrock bloomberg bytedance ebay evernote facebook goldman-sachs google grab groupon intel linkedin lyft microsoft nutanix oracle paypal qualtrics salesforce sap servicenow snapchat splunk tableau uber visa vmware yahoo
Implement Queue using Stacks	Easy	amazon apple bloomberg citadel google mathworks microsoft oracle salesforce uber yahoo yandex
Implement Stack using Queues	Easy	amazon bloomberg citadel google mathworks microsoft twilio yahoo
Combination Sum 3 - Find k numbers summing up to n	Medium	amazon bloomberg google microsoft
Implement Trie Problem	Medium	amazon apple bloomberg ebay facebook google microsoft nutanix oracle pinterest qualtrics quip square twitter uber
Minimum Size Subarray Sum	Medium	amazon apple bloomberg bytedance facebook goldman-sachs google microsoft oracle sap
Rotate an Array to Right	Medium	amazon bloomberg cisco ebay facebook goldman-sachs microsoft paypal snapchat uber
Number of Islands	Medium	adobe affirm alibaba amazon appdynamics apple arista-networks atlassian audible blackrock bloomberg bytedance cisco citadel citrix cohesity cruise-automation doordash ebay electronic-arts evernote expedia facebook godaddy goldman-sachs google houzz hulu jpmorgan linkedin liveramp lyft mathworks microsoft nutanix nvidia oracle palantir-technologies paypal qualtrics roblox salesforce servicenow snapchat splunk spotify square sumologic tableau twitch twitter uber visa vmware wish yahoo zenefits zulily
Word Frequency from File	Medium	adobe amazon facebook google yelp
Department Top Three Salaries Problem	Hard	adobe amazon google netflix
Consecutive Numbers Problem	Medium	amazon apple
Combine Two Tables Problem	Easy	adobe amazon apple google yahoo
Missing Ranges	Easy	amazon facebook google oracle
Read N Characters Given Read4 2 - Call Multiple Times	Hard	amazon bloomberg facebook google lyft microsoft pinterest uber
Find Minimum in Rotated Sorted Array 2 - Duplicates allowed	Hard	adobe amazon facebook google uber
Reorder List such that i-th element points to n-i th element	Medium	adobe amazon apple bytedance cisco ebay facebook google linkedin microsoft splunk tencent
Word Break 1 - Check if word is breakable	Medium	adobe amazon apple audible bloomberg bytedance coupang ebay facebook godaddy google hbo hulu microsoft oracle pinterest pocket-gems qualtrics salesforce snapchat square tripadvisor twilio twitter uber vmware yahoo yelp zillow
Best Time To Buy And Sell Stock 3 - at most twice	Hard	amazon apple atlassian bloomberg citadel facebook flipkart google microsoft rubrik two-sigma
Best Time To Buy And Sell Stock 2 - Any number of times	Medium	adobe amazon apple bloomberg citadel facebook goldman-sachs google microsoft oracle uber yahoo
Path Sum 2 - find all root to leaf paths	Medium	adobe amazon apple baidu bloomberg bytedance facebook google linkedin microsoft oracle quora vmware zillow
Binary Tree Traversal - Level Order Bottom up	Medium	adobe amazon apple microsoft oracle
Decode Ways Problem	Medium	adobe amazon apple baidu barclays bloomberg cisco databricks expedia facebook goldman-sachs google huawei lyft microsoft oracle pinterest snapchat square twitter uber
Subsets 2 Problem	Medium	amazon bloomberg facebook microsoft
Recover Binary Search Tree	Medium	amazon bloomberg facebook goldman-sachs google microsoft uber
Edit Distance Problem	Medium	adobe amazon apple baidu bloomberg bytedance facebook goldman-sachs google intuit linkedin microsoft paypal qualcomm square uber vmware yahoo
Simplify Path Problem	Medium	adobe amazon bloomberg bytedance docusign facebook microsoft oracle salesforce yandex
Remove duplicates from Sorted Array 2	Medium	amazon facebook google vmware
Text Justification	Hard	airbnb amazon apple box coursera facebook google indeed intuit linkedin lyft microsoft palantir paypal pinterest robinhood snapchat twilio twitter uber
Unique Paths in Grid 2 - Count all paths moving right or down with obstacles	Medium	amazon apple bloomberg cruise-automation epic-systems facebook godaddy goldman-sachs google mathworks microsoft qualcomm snapchat vmware yahoo