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Google SDE 2

The 183 highest-frequency questions from last 30 days. Finish the strongest signals first.

Updated weekly · Latest source check: 13 Oct 2026ⓘLatest successful check of the sources used by this company. A check does not necessarily mean the questions changed.

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Top questions 183

Done	Question	LeetCode
Mark Two Sum completed	Two Sum	Solve
Mark Add Two Numbers completed	Add Two Numbers	Solve
Mark 3Sum completed	3Sum	Solve
Mark Best Time to Buy and Sell Stock completed	Best Time to Buy and Sell Stock	Solve
Mark Longest Substring Without Repeating Characters completed	Longest Substring Without Repeating Characters	Solve
Mark Palindrome Number completed	Palindrome Number	Solve
Mark Trapping Rain Water completed	Trapping Rain Water	Solve
Mark Container With Most Water completed	Container With Most Water	Solve
Mark Longest Common Prefix completed	Longest Common Prefix	Solve
Mark Median of Two Sorted Arrays completed	Median of Two Sorted Arrays	Solve
Mark Remove Duplicates from Sorted Array completed	Remove Duplicates from Sorted Array	Solve
Mark Reverse Integer completed	Reverse Integer	Solve
Mark Combine Two Tables completed	Combine Two Tables	Solve
Mark Majority Element completed	Majority Element	Solve
Mark Concatenation of Array completed	Concatenation of Array	Solve
Mark Maximum XOR of Two Numbers in an Array completed	Maximum XOR of Two Numbers in an Array	Solve
Mark Binary Search completed	Binary Search	Solve
Mark Longest Consecutive Sequence completed	Longest Consecutive Sequence	Solve
Mark Maximum Product of Three Numbers completed	Maximum Product of Three Numbers	Solve
Mark Move Zeroes completed	Move Zeroes	Solve
Mark Split Array Largest Sum completed	Split Array Largest Sum	Solve
Mark Valid Anagram completed	Valid Anagram	Solve
Mark Contains Duplicate completed	Contains Duplicate	Solve
Mark Find Missing Elements completed	Find Missing Elements	Solve
Mark Find the Lexicographically Smallest Valid Sequence completed	Find the Lexicographically Smallest Valid Sequence	Solve
Mark Group Anagrams completed	Group Anagrams	Solve
Mark House Robber completed	House Robber	Solve
Mark Maximum Product of Two Elements in an Array completed	Maximum Product of Two Elements in an Array	Solve
Mark Middle of the Linked List completed	Middle of the Linked List	Solve
Mark Number of Islands completed	Number of Islands	Solve
Mark Power of Two completed	Power of Two	Solve
Mark Reverse Linked List completed	Reverse Linked List	Solve
Mark Reverse String completed	Reverse String	Solve
Mark Search Insert Position completed	Search Insert Position	Solve
Mark Sliding Window Maximum completed	Sliding Window Maximum	Solve
Mark Smallest Divisible Digit Product I completed	Smallest Divisible Digit Product I	Solve
Mark Stone Game completed	Stone Game	Solve
Mark Subarray Sum Equals K completed	Subarray Sum Equals K	Solve
Mark 3Sum Closest completed	3Sum Closest	Solve
Mark 4Sum completed	4Sum	Solve
Mark Add Two Integers completed	Add Two Integers	Solve
Mark Binary Tree Inorder Traversal completed	Binary Tree Inorder Traversal	Solve
Mark Generate Parentheses completed	Generate Parentheses	Solve
Mark Letter Combinations of a Phone Number completed	Letter Combinations of a Phone Number	Solve
Mark Longest Repeating Character Replacement completed	Longest Repeating Character Replacement	Solve
Mark Minimum Number of Pushes to Type Word I completed	Minimum Number of Pushes to Type Word I	Solve
Mark Next Greater Element I completed	Next Greater Element I	Solve
Mark Palindrome Linked List completed	Palindrome Linked List	Solve
Mark Plus One completed	Plus One	Solve
Mark Predict the Winner completed	Predict the Winner	Solve
Mark Recyclable and Low Fat Products completed	Recyclable and Low Fat Products	Solve
Mark Rotate Array completed	Rotate Array	Solve
Mark Running Sum of 1d Array completed	Running Sum of 1d Array	Solve
Mark Smallest Subsequence of Distinct Characters completed	Smallest Subsequence of Distinct Characters	Solve
Mark Two Sum II - Input Array Is Sorted completed	Two Sum II - Input Array Is Sorted	Solve
Mark Best Time to Buy and Sell Stock II completed	Best Time to Buy and Sell Stock II	Solve
Mark Contains Duplicate II completed	Contains Duplicate II	Solve
Mark Employees Earning More Than Their Managers completed	Employees Earning More Than Their Managers	Solve
Mark Find Customer Referee completed	Find Customer Referee	Solve
Mark First Missing Positive completed	First Missing Positive	Solve
Mark Happy Number completed	Happy Number	Solve
Mark Intersection of Two Arrays completed	Intersection of Two Arrays	Solve
Mark Maximize Active Section with Trade II completed	Maximize Active Section with Trade II	Solve
Mark Maximum Depth of Binary Tree completed	Maximum Depth of Binary Tree	Solve
Mark Product of Array Except Self completed	Product of Array Except Self	Solve
Mark Range Sum Query - Immutable completed	Range Sum Query - Immutable	Solve
Mark Remove Duplicates from Sorted List completed	Remove Duplicates from Sorted List	Solve
Mark Reorder List completed	Reorder List	Solve
Mark Rotting Oranges completed	Rotting Oranges	Solve
Mark Smallest Missing Integer Greater Than Sequential Prefix Sum completed	Smallest Missing Integer Greater Than Sequential Prefix Sum	Solve
Mark Squares of a Sorted Array completed	Squares of a Sorted Array	Solve
Mark Stone Game II completed	Stone Game II	Solve
Mark Stone Game III completed	Stone Game III	Solve
Mark Top K Frequent Elements completed	Top K Frequent Elements	Solve
Mark Valid Parentheses completed	Valid Parentheses	Solve
Mark Burst Balloons completed	Burst Balloons	Solve
Mark Check if Array Is Sorted and Rotated completed	Check if Array Is Sorted and Rotated	Solve
Mark Climbing Stairs completed	Climbing Stairs	Solve
Mark Count Valid Sequences completed	Count Valid Sequences	Solve
Mark Diameter of Binary Tree completed	Diameter of Binary Tree	Solve
Mark Find First and Last Position of Element in Sorted Array completed	Find First and Last Position of Element in Sorted Array	Solve
Mark Find the Difference completed	Find the Difference	Solve
Mark Find the Duplicate Number completed	Find the Duplicate Number	Solve
Mark Find the Index of the First Occurrence in a String completed	Find the Index of the First Occurrence in a String	Solve
Mark Isomorphic Strings completed	Isomorphic Strings	Solve
Mark Jump Game II completed	Jump Game II	Solve
Mark Logger Rate Limiter completed	Logger Rate Limiter	Solve
Mark Longest Palindromic Substring completed	Longest Palindromic Substring	Solve
Mark Lowest Common Ancestor of a Binary Tree completed	Lowest Common Ancestor of a Binary Tree	Solve
Mark LRU Cache completed	LRU Cache	Solve
Mark Maximize Active Section with Trade I completed	Maximize Active Section with Trade I	Solve
Mark Maximum Average Subarray I completed	Maximum Average Subarray I	Solve
Mark Maximum Length Substring With Two Occurrences completed	Maximum Length Substring With Two Occurrences	Solve
Mark Maximum Product of Two Digits completed	Maximum Product of Two Digits	Solve
Mark Meeting Rooms II completed	Meeting Rooms II	Solve
Mark Merge Intervals completed	Merge Intervals	Solve
Mark Merge Sorted Array completed	Merge Sorted Array	Solve
Mark Missing Number completed	Missing Number	Solve
Mark N-Queens completed	N-Queens	Solve
Mark Next Greater Element II completed	Next Greater Element II	Solve
Mark Number of Recent Calls completed	Number of Recent Calls	Solve
Mark Number of Visible People in a Queue completed	Number of Visible People in a Queue	Solve
Mark Pow(x, n) completed	Pow(x, n)	Solve
Mark Reverse Pairs completed	Reverse Pairs	Solve
Mark Roman to Integer completed	Roman to Integer	Solve
Mark Search in Rotated Sorted Array completed	Search in Rotated Sorted Array	Solve
Mark Second Minimum Time to Reach Destination completed	Second Minimum Time to Reach Destination	Solve
Mark Shift 2D Grid completed	Shift 2D Grid	Solve
Mark Smallest Palindromic Rearrangement I completed	Smallest Palindromic Rearrangement I	Solve
Mark Sort an Array completed	Sort an Array	Solve
Mark Sort List completed	Sort List	Solve
Mark Spiral Matrix completed	Spiral Matrix	Solve
Mark Sqrt(x) completed	Sqrt(x)	Solve
Mark Subarray Product Less Than K completed	Subarray Product Less Than K	Solve
Mark Zigzag Conversion completed	Zigzag Conversion	Solve
Mark Binary Tree Zigzag Level Order Traversal completed	Binary Tree Zigzag Level Order Traversal	Solve
Mark Bus Routes completed	Bus Routes	Solve
Mark Can Place Flowers completed	Can Place Flowers	Solve
Mark Car Pooling completed	Car Pooling	Solve
Mark Coin Change completed	Coin Change	Solve
Mark Count Complete Tree Nodes completed	Count Complete Tree Nodes	Solve
Mark Count Primes completed	Count Primes	Solve
Mark Course Schedule completed	Course Schedule	Solve
Mark Daily Temperatures completed	Daily Temperatures	Solve
Mark Decode String completed	Decode String	Solve
Mark Decode Ways completed	Decode Ways	Solve
Mark Divide Two Integers completed	Divide Two Integers	Solve
Mark Dungeon Game completed	Dungeon Game	Solve
Mark Duplicate Zeros completed	Duplicate Zeros	Solve
Mark Find Median from Data Stream completed	Find Median from Data Stream	Solve
Mark Find Minimum in Rotated Sorted Array completed	Find Minimum in Rotated Sorted Array	Solve
Mark Find Minimum in Rotated Sorted Array II completed	Find Minimum in Rotated Sorted Array II	Solve
Mark Find Missing and Repeated Values completed	Find Missing and Repeated Values	Solve
Mark Find Peak Element completed	Find Peak Element	Solve
Mark Fruit Into Baskets completed	Fruit Into Baskets	Solve
Mark H-Index completed	H-Index	Solve
Mark Implement Queue using Stacks completed	Implement Queue using Stacks	Solve
Mark Implement Trie (Prefix Tree) completed	Implement Trie (Prefix Tree)	Solve
Mark Insert Interval completed	Insert Interval	Solve
Mark Integer to Roman completed	Integer to Roman	Solve
Mark Invert Binary Tree completed	Invert Binary Tree	Solve
Mark Koko Eating Bananas completed	Koko Eating Bananas	Solve
Mark Kth Ancestor of a Tree Node completed	Kth Ancestor of a Tree Node	Solve
Mark Largest Rectangle in Histogram completed	Largest Rectangle in Histogram	Solve
Mark Length of Longest Subarray With at Most K Frequency completed	Length of Longest Subarray With at Most K Frequency	Solve
Mark LFU Cache completed	LFU Cache	Solve
Mark Linked List Cycle completed	Linked List Cycle	Solve
Mark Longest Common Subsequence completed	Longest Common Subsequence	Solve
Mark Longest Substring of One Repeating Character completed	Longest Substring of One Repeating Character	Solve
Mark Max Consecutive Ones completed	Max Consecutive Ones	Solve
Mark Maximum Good Subarray Sum completed	Maximum Good Subarray Sum	Solve
Mark Merge Strings Alternately completed	Merge Strings Alternately	Solve
Mark Merge Two Sorted Lists completed	Merge Two Sorted Lists	Solve
Mark Minimum Cost For Tickets completed	Minimum Cost For Tickets	Solve
Mark Minimum Height Trees completed	Minimum Height Trees	Solve
Mark Minimum Number of Days to Make m Bouquets completed	Minimum Number of Days to Make m Bouquets	Solve
Mark Non-overlapping Intervals completed	Non-overlapping Intervals	Solve
Mark Odd Even Linked List completed	Odd Even Linked List	Solve
Mark Palindrome Partitioning completed	Palindrome Partitioning	Solve
Mark Partition Array Into Two Arrays to Minimize Sum Difference completed	Partition Array Into Two Arrays to Minimize Sum Difference	Solve
Mark Partition Equal Subset Sum completed	Partition Equal Subset Sum	Solve
Mark Regular Expression Matching completed	Regular Expression Matching	Solve
Mark Remove All Adjacent Duplicates In String completed	Remove All Adjacent Duplicates In String	Solve
Mark Remove Duplicates from Sorted Array II completed	Remove Duplicates from Sorted Array II	Solve
Mark Remove Methods From Project completed	Remove Methods From Project	Solve
Mark Remove Nth Node From End of List completed	Remove Nth Node From End of List	Solve
Mark Richest Customer Wealth completed	Richest Customer Wealth	Solve
Mark Rotate List completed	Rotate List	Solve
Mark Single Element in a Sorted Array completed	Single Element in a Sorted Array	Solve
Mark Single Number completed	Single Number	Solve
Mark Smallest Divisible Digit Product II completed	Smallest Divisible Digit Product II	Solve
Mark Smallest Palindromic Rearrangement II completed	Smallest Palindromic Rearrangement II	Solve
Mark Step-By-Step Directions From a Binary Tree Node to Another completed	Step-By-Step Directions From a Binary Tree Node to Another	Solve
Mark Subarray Sums Divisible by K completed	Subarray Sums Divisible by K	Solve
Mark Symmetric Tree completed	Symmetric Tree	Solve
Mark Time Based Key-Value Store completed	Time Based Key-Value Store	Solve
Mark Unique Middle Element completed	Unique Middle Element	Solve
Mark Unique Paths completed	Unique Paths	Solve
Mark Unique Paths II completed	Unique Paths II	Solve
Mark Valid Palindrome completed	Valid Palindrome	Solve
Mark Water Bottles completed	Water Bottles	Solve
Mark Word Ladder completed	Word Ladder	Solve
Mark Word Search completed	Word Search	Solve