Coding interview questions

Walmart Medium Coding Interview Questions (DSA)

The 33 medium DSA problems Walmart has asked most in the last six months, most-asked first. Switch tabs to see the rest of the 50. Tick them off as you go.

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33medium problems
33full breakdowns
50Walmart problems in all

By difficulty: All (50) · Easy (7) · Medium (33) · Hard (10)

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Topics

49.Group Anagrams
Full breakdownArrayHash TableString
Medium+9▶ Mock
740.Delete and Earn
Full breakdownArrayHash TableDynamic Programming
Medium▶ Mock
210.Course Schedule II
Full breakdownDepth-First SearchBreadth-First SearchGraph Theory
Medium+3▶ Mock
139.Word Break
Full breakdownArrayHash TableString
Medium+6▶ Mock
200.Number of Islands
Full breakdownArrayDepth-First SearchBreadth-First Search
Medium+7▶ Mock
870.Advantage Shuffle
Full breakdownArrayTwo PointersGreedy
Medium▶ Mock
75.Sort Colors
Full breakdownArrayTwo PointersSorting
Medium▶ Mock
56.Merge Intervals
Full breakdownArraySortingQuicksort
Medium+14▶ Mock
6.Zigzag Conversion
Full breakdownString
Medium▶ Mock
207.Course Schedule
Full breakdownDepth-First SearchBreadth-First SearchGraph Theory
Medium+4▶ Mock
347.Top K Frequent Elements
Full breakdownArrayHash TableDivide and Conquer
Medium+6▶ Mock
287.Find the Duplicate Number
Full breakdownArrayTwo PointersBinary Search
Medium▶ Mock
3.Longest Substring Without Repeating Characters
Full breakdownHash TableStringSliding Window
Medium+13▶ Mock
5.Longest Palindromic Substring
Full breakdownTwo PointersStringDynamic Programming
Medium+8▶ Mock
11.Container With Most Water
Full breakdownArrayTwo PointersGreedy
Medium+6▶ Mock
15.3Sum
Full breakdownArrayTwo PointersSorting
Medium+5▶ Mock
22.Generate Parentheses
Full breakdownStringDynamic ProgrammingBacktracking
Medium+1▶ Mock
33.Search in Rotated Sorted Array
Full breakdownArrayBinary Search
Medium+5▶ Mock
54.Spiral Matrix
Full breakdownArrayMatrixSimulation
Medium+2▶ Mock
79.Word Search
Full breakdownArrayStringBacktracking
Medium+1▶ Mock
103.Binary Tree Zigzag Level Order Traversal
Full breakdownTreeBreadth-First SearchBinary Tree
Medium▶ Mock
128.Longest Consecutive Sequence
Full breakdownArrayHash TableUnion-Find
Medium+3▶ Mock
146.LRU Cache
Full breakdownHash TableLinked ListDesign
Medium+10▶ Mock
189.Rotate Array
Full breakdownArrayMathTwo Pointers
Medium+1▶ Mock
198.House Robber
Full breakdownArrayDynamic Programming
Medium+1▶ Mock
215.Kth Largest Element in an Array
Full breakdownArrayDivide and ConquerSorting
Medium▶ Mock
322.Coin Change
Full breakdownArrayDynamic ProgrammingBreadth-First Search
Medium+4▶ Mock
739.Daily Temperatures
Full breakdownArrayStackMonotonic Stack
Medium+5▶ Mock
50.Pow(x, n)
Full breakdownMathRecursion
Medium▶ Mock
1143.Longest Common Subsequence
Full breakdownStringDynamic ProgrammingLongest Common Subsequence
Medium▶ Mock
155.Min Stack
Full breakdownStackDesign
Medium▶ Mock
2461.Maximum Sum of Distinct Subarrays With Length K
Full breakdownArrayHash TableSliding Window
Medium▶ Mock
341.Flatten Nested List Iterator
Full breakdownStackTreeDepth-First Search
Medium▶ Mock

Frequently Asked Questions

What medium Walmart coding questions are most common?

InterviewSkool has 33 medium Walmart coding questions. Focus on the top 10 to 15 most common problems for the best ROI.

How many medium questions does Walmart have?

Walmart has 33 medium coding questions out of 50 total. Most interviews focus on Medium problems, so this is the most important difficulty to prepare for.

Are these Walmart medium questions free?

Yes. All 33 medium Walmart coding questions are free to browse. No sign-up required. Filter by topic and click any problem to open it on LeetCode.

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