| Zero Array Transformation 1 |
Medium
|
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| Number of Substrings Containing All Three Characters |
Medium
|
de-shaw
|
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| Alternating Groups 2 |
Medium
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| Closest Prime Numbers in Range |
Medium
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| Count Total Number of Colored Cells |
Medium
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| Check if Number is a Sum of Powers of Three |
Medium
|
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| Length of Longest Fibonacci Subsequence |
Medium
|
amazon
baidu
|
|
| Maximum Absolute Sum of Any Subarray |
Medium
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| Number of Sub-arrays With Odd Sum |
Medium
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|
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| Most Profitable Path in a Tree |
Medium
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|
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| Construct Binary Tree from Preorder and Postorder Traversal |
Medium
|
amazon
bloomberg
facebook
google
uber
|
|
| 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
|
|
| Find the Punishment Number of an Integer |
Medium
|
|
|
| Product of the Last K Numbers |
Medium
|
google
|
|
| Minimum Operations to Exceed Threshold Value 2 |
Medium
|
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| Remove All Occurrences of a Substring |
Medium
|
|
|
| Count Number of Bad Pairs |
Medium
|
|
|
| Design a Number Container System |
Medium
|
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| Find the Number of Distinct Colors Among the Balls |
Medium
|
|
|
| Find All Occurrences of the Pattern in the String |
Medium
|
microsoft
|
|
| Tuple with Same Product |
Medium
|
|
|
| Maximum Number of Fish in a Grid |
Medium
|
|
|
| Make Lexicographically Smallest Array by Swapping Elements |
Medium
|
|
|
| Fix the variable capture in closure |
Medium
|
google
|
|
| Count Servers that Communicate |
Medium
|
amazon
google
|
|
| Check if a graph is minimally-connected |
Medium
|
facebook
|
|
| Describe and give an example of Ad-hoc, Parametric and Subtype polymorphism |
Medium
|
microsoft
|
|
| Map of Highest Peak |
Medium
|
|
|
| Construct Binary Search Tree BST from Postorder Traversal |
Medium
|
google
|
|
| Grid Game |
Medium
|
|
|
| Sort a linked list in O(n log n) time and constant space |
Medium
|
google
|
|
| Implement a 2D iterator class |
Medium
|
uber
|
|
| First Completely Painted Row or Column |
Medium
|
|
|
| Neighboring Bitwise XOR |
Medium
|
|
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| Bitwise XOR of All Pairings |
Medium
|
|
|
| Minimize XOR |
Medium
|
|
|
| Generate random numbers from list based on given probabilities |
Medium
|
triplebyte
|
|
| Find the Prefix Common Array of Two Arrays |
Medium
|
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|
| Minimum Length of String After Operations |
Medium
|
|
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| Check if a Parentheses String Can Be Valid |
Medium
|
|
|
| Construct K Palindrome Strings |
Medium
|
uber
|
|
| Word Subsets |
Medium
|
amazon
facebook
google
|
|
| Find nearest larger number for index in an array |
Medium
|
google
|
|
| Implement a bit array |
Medium
|
amazon
|
|
| Minimum Number of Operations to Move All Balls to Each Box |
Medium
|
|
|
| Square root of a real number |
Medium
|
|
|
| Shifting Letters II |
Medium
|
|
|
| Break a string into lines of length k without breaking words |
Medium
|
amazon
|
|