| Check if doubly linked list is palindrome |
Easy
|
google
|
|
| Return two prime numbers that sum to a given even number |
Easy
|
alibaba
|
|
| Final Prices With a Special Discount in a Shop |
Easy
|
|
|
| Final Array State After K Multiplication Operations I |
Easy
|
|
|
| Take Gifts From the Richest Pile |
Easy
|
|
|
| Check if an element exists in a binary tree |
Easy
|
|
|
| Duplicate each node in a binary search tree and add as its left child |
Easy
|
|
|
| Find a Corresponding Node of a Binary Tree in a Clone of That Tree |
Easy
|
facebook
|
|
| Find GCD of n numbers |
Easy
|
amazon
|
|
| Implement queue using linked list |
Easy
|
|
|
| Implementing a queue using a fixed-size array |
Easy
|
|
|
| Maximum in a Binary Search Tree |
Easy
|
|
|
| Maximum in a Binary Tree |
Easy
|
|
|
| Min Queue |
Easy
|
|
|
| Minimum in a Binary Search Tree |
Easy
|
|
|
| Power of Three |
Easy
|
apple
goldman-sachs
google
hulu
|
|
| Print or return all leaf nodes of a binary tree |
Easy
|
|
|
| Print or return all the full nodes in a binary tree |
Easy
|
|
|
| Range Sum Query - Immutable |
Easy
|
amazon
bloomberg
facebook
goldman-sachs
google
microsoft
palantir-technologies
|
|
| Add Two Integers |
Easy
|
|
|
| Allow One Function Call |
Easy
|
|
|
| Array Prototype ForEach |
Easy
|
|
|
| Array Wrapper |
Easy
|
|
|
| Available Captures for Rook |
Easy
|
square
|
|
| Average Selling Price |
Easy
|
amazon
|
|
| Average Time of Process per Machine |
Easy
|
|
|
| Base 7 |
Easy
|
bloomberg
google
|
|
| Binary Number with Alternating Bits |
Easy
|
yahoo
|
|
| Calculate Money in Leetcode Bank |
Easy
|
|
|
| Calculator with Method Chaining |
Easy
|
|
|
| Categorize Box According to Criteria |
Easy
|
|
|
| Cells with Odd Values in a Matrix |
Easy
|
|
|
| Check if Binary String Has at Most One Segment of Ones |
Easy
|
|
|
| Check if Bitwise OR Has Trailing Zeros |
Easy
|
|
|
| Check if Every Row and Column Contains All Numbers |
Easy
|
|
|
| Check if Matrix Is X-Matrix |
Easy
|
|
|
| Check If N and Its Double Exist |
Easy
|
google
|
|
| Check if Two Chessboard Squares Have the Same Color |
Easy
|
|
|
| Chunk Array |
Easy
|
|
|
| Classifying Triangles by Lengths |
Easy
|
|
|
| Construct the Minimum Bitwise Array I |
Easy
|
|
|
| Convert Date Format |
Easy
|
|
|
| Convert Doubly Linked List to Array I |
Easy
|
|
|
| Convert the Temperature |
Easy
|
|
|
| Count Common Words With One Occurrence |
Easy
|
|
|
| Count Pairs Of Similar Strings |
Easy
|
|
|
| Count Pairs Whose Sum is Less than Target |
Easy
|
|
|
| Count Prefixes of a Given String |
Easy
|
|
|
| Count Square Sum Triples |
Easy
|
|
|
| Count Substrings with Only One Distinct Letter |
Easy
|
virtu
|
|