| Maximum Sum of 3 Non-Overlapping Subarrays | Hard | facebook
google | |
| Minimum Increment to Make Array Unique | Medium | coursera
ixl
twitter | |
| Number of Good Leaf Nodes Pairs Problem | Medium | google | |
| Hand of Straights Problem | Medium | bloomberg
coupang
ebay
google | |
| Add to Array-Form of Integer | Easy | facebook
google | |
| Fraction Addition and Subtraction Problem | Medium | goldman-sachs
ixl | |
| Greatest Common Divisor of Strings Problem | Easy | atlassian
capital-one | |
| Convert Binary Search Tree to Sorted Doubly Linked List Problem | Medium | amazon
bloomberg
databricks
facebook
google
lyft
microsoft
oracle
uber
vmware | |
| Sparse Matrix Multiplication | Medium | amazon
apple
bloomberg
facebook
google
linkedin
microsoft
snapchat
uber | |
| Vertical Order Traversal of a Binary Tree Problem | Hard | adobe
amazon
bloomberg
databricks
facebook
google
linkedin
microsoft
reddit
samsung | |
| Find Duplicate File in System Problem | Medium | amazon
apple
dropbox
facebook
google
microsoft
oracle
vmware | |
| Longest Palindrome by Concatenating Two Letter Words Problem | Medium | | |
| N-ary Tree Postorder Traversal Problem | Easy | amazon | |
| N-ary Tree Preorder Traversal Problem | Easy | | |
| Reverse String 2 Problem | Easy | amazon
google
microsoft | |
| Most Stones Removed with Same Row or Column Problem | Medium | google | |
| N-th Tribonacci Number Problem | Easy | coursera
facebook | |
| Naming a Company Problem | Hard | | |
| Longest Substring with At Least K Repeating Characters Problem | Medium | adobe
amazon
baidu
bloomberg
bytedance
facebook
google
uber | |
| Maximum 69 Number Problem | Easy | hrt | |
| Minimum Time Difference Problem | Medium | amazon
palantir-technologies | |
| Valid Square Problem | Medium | facebook
google
pure-storage | |
| Sum of All Odd Length Subarrays | Easy | | |
| Online Stock Span Problem | Medium | amazon
google
microsoft | |
| Count Number of Homogenous Substrings Problem | Medium | | |
| Game Analysis IV | Medium | facebook
gsn-games | |
| Game Play Analysis V | Hard | gsn-games | |
| Toeplitz Matrix | Easy | apple
facebook
google | |
| Delete the Middle Node of a Linked List Problem | Medium | | |
| Design Circular Deque Problem | Medium | facebook | |
| Image Overlap Problem | Medium | google | |
| Peak Index in a Mountain Array | Medium | amazon
bloomberg
facebook
google
microsoft
quora
uber | |
| Lexicographical Numbers Problem | Medium | adobe
bloomberg
bytedance
google | |
| Mini Parser Problem | Medium | airbnb
google | |
| N-Queens 2 - Count number of distinct solutions | Hard | amazon
zenefits | |
| Make The String Great Problem | Easy | google | |
| Shortest Way to Form String Problem | Medium | facebook
google | |
| Find Numbers with Even Number of Digits | Easy | quora | |
| Arrange Given Number To Form The Biggest Number Possible | | uber | |
| Range Addition 2 | Easy | ixl | |
| Minimum Moves to Equal Array Elements | Medium | amazon
apple
coursera
drawbridge
indeed | |
| Largest Time for Given Digits Problem | Medium | google
liveramp | |
| Next Greater Element 2 | Medium | amazon
bloomberg
facebook
google
microsoft
oracle
yahoo | |
| Find the Winner of an Array Game | Medium | | |
| Backspace String Compare Problem | Easy | amazon
atlassian
facebook
google
microsoft
oracle
uber | |
| 132 Pattern Problem | Medium | amazon
facebook
google
oracle | |
| Decoded String at Index Problem | Medium | national-instruments | |
| Find the Difference Problem | Easy | adobe
amazon
google | |
| Range Addition | Medium | google | |
| Valid Perfect Square Problem | Easy | amazon
facebook
google
linkedin
microsoft | |