| Length of Longest Fibonacci Subsequence |
Medium
|
amazon
baidu
|
|
| Maximum Absolute Sum of Any Subarray |
Medium
|
|
|
| Number of Sub-arrays With Odd Sum |
Medium
|
|
|
| Most Profitable Path in a Tree |
Medium
|
|
|
| Construct Binary Tree from Preorder and Postorder Traversal |
Medium
|
amazon
bloomberg
facebook
google
uber
|
|
| Recover a Tree From Preorder Traversal |
Hard
|
amazon
linkedin
|
|
| Find Unique Binary String |
Medium
|
|
|
| The k-th Lexicographical String of All Happy Strings of Length n |
Medium
|
microsoft
|
|
| Letter Tile Possibilities |
Medium
|
google
microsoft
|
|
| Lazy Caterer's sequence |
|
|
|
| Find the Punishment Number of an Integer |
Medium
|
|
|
| Product of the Last K Numbers |
Medium
|
google
|
|
| Minimum Operations to Exceed Threshold Value 2 |
Medium
|
|
|
| Remove All Occurrences of a Substring |
Medium
|
|
|
| Count Number of Bad Pairs |
Medium
|
|
|
| Design a Number Container System |
Medium
|
|
|
| Smallest sparse number greater than or equal to N |
Hard
|
oracle
|
|
| Find the Number of Distinct Colors Among the Balls |
Medium
|
|
|
| Length of the Longest Consecutive 1s in Binary Representation |
Easy
|
stripe
|
|
| Find All Occurrences of the Pattern in the String |
Medium
|
microsoft
|
|
| Collatz Sequence |
Easy
|
apple
|
|
| Tuple with Same Product |
Medium
|
|
|
| Clear Digits |
Easy
|
|
|
| Maximum Ascending Subarray Sum |
Easy
|
|
|
| Permutation of Array using given order |
Easy
|
twitter
|
|
| Next Permutation of Integer |
Easy
|
ibm
|
|
| Longest Strictly Increasing or Strictly Decreasing Subarray |
Easy
|
|
|
| Check if Array Is Sorted and Rotated |
Easy
|
|
|
| Making A Large Island |
Hard
|
amazon
facebook
google
uber
|
|
| Divide Nodes Into the Maximum Number of Groups |
Hard
|
|
|
| Maximum Number of Fish in a Grid |
Medium
|
|
|
| Maximum Employees to Be Invited to a Meeting |
Hard
|
|
|
| Balance Parentheses with Minimum Insertions and Deletions |
Hard
|
facebook
|
|
| Make Lexicographically Smallest Array by Swapping Elements |
Medium
|
|
|
| Count elements in range in sorted matrix |
Hard
|
google
|
|
| Longest subarray with distinct elements |
Easy
|
google
|
|
| Fix the variable capture in closure |
Medium
|
google
|
|
| Check if any pair of rectangles overlap |
Easy
|
google
|
|
| Divide array into two subsets with minimum difference |
Hard
|
microsoft
|
|
| Area of intersection of two rectangles |
Easy
|
google
|
|
| Count Servers that Communicate |
Medium
|
amazon
google
|
|
| Check if a graph is minimally-connected |
Medium
|
facebook
|
|
| Split string into fewest palindromic substrings |
Hard
|
google
|
|
| Alice Joins Probability Student Club by Calculating Expected Values of Probabilistic Games |
Hard
|
two-sigma
|
|
| Describe and give an example of Ad-hoc, Parametric and Subtype polymorphism |
Medium
|
microsoft
|
|
| Run a Markov chain and count state visits |
Easy
|
google
|
|
| Map of Highest Peak |
Medium
|
|
|
| Construct Binary Search Tree BST from Postorder Traversal |
Medium
|
google
|
|
| Flatten a nested dictionary |
Easy
|
stripe
|
|
| Busiest period in a building |
Easy
|
amazon
|
|