Company: PayPal
- 3Sum Smaller
- 3Sum
- Amount of Time for Binary Tree to Be Infected
- Best Time to Buy and Sell Stock
- Coin Change
- Count Array Pairs Divisible by K
- Count the Number of Vowel Strings in Range
- Count Vowel Strings in Ranges
- Count Vowel Substrings of a String
- Degree of an Array
- Delete Node in a Linked List
- Design Twitter
- Find First and Last Position of Element in Sorted Array
- Find Median from Data Stream
- Find Pivot Index
- Find the Smallest Divisor Given a Threshold
- First Missing Positive
- First Unique Character in a String
- Flatten Deeply Nested Array
- Group Anagrams
- House Robber
- Jump Game
- Kth Largest Element in an Array
- Last Stone Weight
- Longest Consecutive Sequence
- Longest Increasing Subsequence
- Longest Palindromic Substring
- Longest Substring Without Repeating Characters
- Loud and Rich
- Lowest Common Ancestor of a Binary Tree
- LRU Cache
- Maximal Square
- Maximum Frequency Score of a Subarray
- Maximum Frequency Stack
- Maximum Number of Events That Can Be Attended
- Maximum Number of Integers to Choose From a Range I
- Maximum Number of Integers to Choose From a Range II
- Maximum Profit in Job Scheduling
- Maximum Sum Obtained of Any Permutation
- Maximum Value at a Given Index in a Bounded Array
- Meeting Rooms II
- Meeting Rooms III
- Meeting Scheduler
- Merge In Between Linked Lists
- Merge Intervals
- Merge Sorted Array
- Minimum Absolute Difference
- Minimum Increment to Make Array Unique
- Minimum Non-Zero Product of the Array Elements
- Minimum Number of Removals to Make Mountain Array
- Minimum Number of Swaps to Make the String Balanced
- Minimum Replacements to Sort the Array
- Number of Islands
- Number of Valid Move Combinations On Chessboard
- Paint House III
- Pairs of Songs With Total Durations Divisible by 60
- Palindromic Substrings
- Process Tasks Using Servers
- Product of Array Except Self
- Random Pick with Weight
- Reorganize String
- Reverse Linked List
- Search a 2D Matrix II
- Search Suggestions System
- Smallest Greater Multiple Made of Two Digits
- Sort Colors
- Spiral Matrix
- Subarray Product Less Than K
- Subarray Sum Equals K
- Time Needed to Rearrange a Binary String
- Top K Frequent Elements
- Two Sum
- Valid Anagram
- Valid Parentheses
- Word Search II
- Word Search
- Zigzag Conversion