Company: ServiceNow
- 3Sum
- Amount of Time for Binary Tree to Be Infected
- Asteroid Collision
- Best Time to Buy and Sell Stock
- Binary Tree Right Side View
- Binary Tree Zigzag Level Order Traversal
- Coin Change
- Combination Sum
- Container With Most Water
- Daily Temperatures
- Design HashMap
- Find First and Last Position of Element in Sorted Array
- Find Minimum Diameter After Merging Two Trees
- First Missing Positive
- First Unique Character in a String
- Fraction to Recurring Decimal
- Gas Station
- Generate Parentheses
- Group Anagrams
- Kth Largest Element in an Array
- Letter Combinations of a Phone Number
- Lexicographically Smallest String After Operations With Constraint
- LFU Cache
- Longest Palindromic Substring
- Longest Substring Without Repeating Characters
- LRU Cache
- Maximum Product Subarray
- Maximum Subarray
- Median of Two Sorted Arrays
- Meeting Rooms II
- Merge Intervals
- Min Stack
- Minimum Number of Taps to Open to Water a Garden
- Move Zeroes
- Next Permutation
- Number of Distinct Roll Sequences
- Number of Distinct Substrings in a String
- Number of Islands
- Number of Visible People in a Queue
- Pacific Atlantic Water Flow
- Palindrome Linked List
- Permutations
- Pow(x, n)
- Reverse Linked List
- Reverse Words in a String II
- Rotting Oranges
- Search in Rotated Sorted Array
- Single Element in a Sorted Array
- String Compression
- Subarray Product Less Than K
- Subarray Sum Equals K
- Sum Root to Leaf Numbers
- Time Needed to Rearrange a Binary String
- Top K Frequent Words
- Trapping Rain Water
- Two Sum
- Valid Palindrome
- Valid Parentheses
- Valid Parenthesis String
- Validate Binary Search Tree
- Validate IP Address
- Vowels of All Substrings
- Zigzag Conversion