Coding interview questions

Goldman Sachs Coding Interview Questions (DSA)

The 39 DSA problems Goldman Sachs has asked most in the last six months, most-asked first. 39 of them have a full breakdown with diagrams and code. Tick them off as you go.

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39problems
39full breakdowns
40topics

By difficulty: Easy (6) · Medium (27) · Hard (6)

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Topics

4.Median of Two Sorted Arrays
Full breakdownArrayBinary SearchDivide and Conquer
Hard+5▶ Mock
11.Container With Most Water
Full breakdownArrayTwo PointersGreedy
Medium+6▶ Mock
42.Trapping Rain Water
Full breakdownArrayTwo PointersDynamic Programming
Hard+6▶ Mock
1086.High Five
Full breakdownArrayHash TableSorting
387.First Unique Character in a String
Full breakdownHash TableStringQueue
166.Fraction to Recurring Decimal
Full breakdownHash TableMathString
Medium▶ Mock
56.Merge Intervals
Full breakdownArraySortingQuicksort
Medium+14▶ Mock
64.Minimum Path Sum
Full breakdownArrayDynamic ProgrammingMatrix
Medium▶ Mock
121.Best Time to Buy and Sell Stock
Full breakdownArrayDynamic Programming
Easy+10▶ Mock
443.String Compression
Full breakdownTwo PointersString
Medium▶ Mock
657.Robot Return to Origin
Full breakdownStringSimulation
200.Number of Islands
Full breakdownArrayDepth-First SearchBreadth-First Search
Medium+7▶ Mock
49.Group Anagrams
Full breakdownArrayHash TableString
Medium+9▶ Mock
33.Search in Rotated Sorted Array
Full breakdownArrayBinary Search
Medium+5▶ Mock
739.Daily Temperatures
Full breakdownArrayStackMonotonic Stack
Medium+4▶ Mock
706.Design HashMap
Full breakdownArrayHash TableLinked List
1823.Find the Winner of the Circular Game
Full breakdownArrayMathRecursion
Medium▶ Mock
146.LRU Cache
Full breakdownHash TableLinked ListDesign
Medium+9▶ Mock
2097.Valid Arrangement of Pairs
Full breakdownArrayDepth-First SearchGraph Theory
3.Longest Substring Without Repeating Characters
Full breakdownHash TableStringSliding Window
Medium+13▶ Mock
1535.Find the Winner of an Array Game
Full breakdownArraySimulation
Medium▶ Mock
207.Course Schedule
Full breakdownDepth-First SearchBreadth-First SearchGraph Theory
Medium+4▶ Mock
516.Longest Palindromic Subsequence
Full breakdownStringDynamic Programming
Medium▶ Mock
240.Search a 2D Matrix II
Full breakdownArrayBinary SearchDivide and Conquer
Medium▶ Mock
2791.Count Paths That Can Form a Palindrome in a Tree
Full breakdownHash TableBit ManipulationTree
1.Two Sum
Full breakdownArrayHash Table
Easy+10▶ Mock
1648.Sell Diminishing-Valued Colored Balls
Full breakdownArrayMathBinary Search
Medium▶ Mock
790.Domino and Tromino Tiling
Full breakdownDynamic Programming
Medium▶ Mock
134.Gas Station
Full breakdownArrayGreedy
Medium+5▶ Mock
124.Binary Tree Maximum Path Sum
Full breakdownDynamic ProgrammingTreeDepth-First Search
5.Longest Palindromic Substring
Full breakdownTwo PointersStringDynamic Programming
Medium+8▶ Mock
74.Search a 2D Matrix
Full breakdownArrayBinary SearchMatrix
Medium▶ Mock
424.Longest Repeating Character Replacement
Full breakdownHash TableStringSliding Window
Medium▶ Mock
528.Random Pick with Weight
Full breakdownArrayMathBinary Search
Medium▶ Mock
721.Accounts Merge
Full breakdownArrayHash TableString
Medium▶ Mock
994.Rotting Oranges
Full breakdownArrayBreadth-First SearchMatrix
Medium+5▶ Mock
460.LFU Cache
Full breakdownHash TableLinked ListDesign
Hard+1▶ Mock
1202.Smallest String With Swaps
Full breakdownArrayHash TableString
Medium▶ Mock

Frequently Asked Questions

What questions does Goldman Sachs ask in coding interviews?

Goldman Sachs coding interviews focus on Array, Binary Search, Binary Tree, Bit Manipulation, and other data structure problems. We compiled 39 questions from real Goldman Sachs interviews. The most common topics are Array, Binary Search, Binary Tree, Bit Manipulation, Breadth-First Search. Filter by topic to see what comes up most often.

How many Goldman Sachs coding interview questions are there?

InterviewSkool has 39 Goldman Sachs coding interview questions: 6 Easy, 27 Medium, and 6 Hard. Most Goldman Sachs interviews focus on Medium-difficulty problems, so prioritize those in your prep.

How should I prepare for Goldman Sachs coding interviews?

Start with Medium difficulty problems. Group by topic (Array, Tree, DP) to build pattern recognition. Aim to solve 30 to 40 problems before your interview. Then practice under pressure with a mock interview.

Are Goldman Sachs coding interview questions free?

Yes. All 39 Goldman Sachs coding interview questions are free to browse with no sign-up required. You can filter by difficulty and topic tags. Start a mock interview with a free credit to practice under real pressure.

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