Dashboard Questions Topics Companies Sheets

Walmart Interview Questions

75 coding problems asked in Walmart interviews. Prepare for your technical interview with real questions.

Problems

Easy

Medium

Hard

Difficulty

All75 Easy12 Medium48 Hard15

Title	Solve	Difficulty	Companies	Topics
1. Two Sum	Solve	Easy	Accenture+29	Array Hash Table
3. Longest Substring Without Repeating Characters	Solve	Medium	Adobe+20	Hash Table Sliding Window+1
4. Median of Two Sorted Arrays	Solve	Hard	Accolite+38	Array Binary Search+1
5. Longest Palindromic Substring	Solve	Medium	Accenture+50	Dynamic Programming String+1
15. 3Sum	Solve	Medium	Adobe+21	Array Sorting+1
17. Letter Combinations of a Phone Number	Solve	Medium	Airtel+34	Backtracking Hash Table+1
19. Remove Nth Node From End of List	Solve	Medium	Amazon+7	Linked List Two Pointers
22. Generate Parentheses	Solve	Medium	Adobe+12	Backtracking Dynamic Programming+1
23. Merge k Sorted Lists	Solve	Hard	Adobe+17	Divide and Conquer Heap (Priority Queue)+2
31. Next Permutation	Solve	Medium	Adobe+19	Array Two Pointers
33. Search in Rotated Sorted Array	Solve	Medium	Accenture+91	Array Binary Search
38. Count and Say	Solve	Medium	Adobe+6	String
41. First Missing Positive	Solve	Hard	Adobe+7	Array Hash Table
46. Permutations	Solve	Medium	Accenture+39	Array Backtracking
49. Group Anagrams	Solve	Medium	Adobe+23	Array Hash Table+2
50. Pow(x, n)	Solve	Medium	Adobe+29	Math Recursion
53. Maximum Subarray	Solve	Medium	Adobe+22	Array Divide and Conquer+1
56. Merge Intervals	Solve	Medium	Adobe+24	Array Sorting
62. Unique Paths	Solve	Medium	Accoloite+41	Combinatorics Dynamic Programming+1
68. Text Justification	Solve	Hard	Adobe+25	Array Simulation+1
112. Path Sum	Solve	Easy	Amazon+4	Binary Tree Breadth-First Search+2
116. Populating Next Right Pointers in Each Node	Solve	Medium	Adobe+11	Binary Tree Breadth-First Search+3
117. Populating Next Right Pointers in Each Node II	Solve	Medium	Adobe+8	Binary Tree Breadth-First Search+3
121. Best Time to Buy and Sell Stock	Solve	Easy	Adobe+30	Array Dynamic Programming
122. Best Time to Buy and Sell Stock II	Solve	Medium	Amazon+7	Array Dynamic Programming+1
134. Gas Station	Solve	Medium	Adobe+8	Array Greedy
135. Candy	Solve	Hard	Adobe+21	Array Greedy
138. Copy List with Random Pointer	Solve	Medium	Aditya Birla group+30	Hash Table Linked List
139. Word Break	Solve	Medium	Accenture+38	Array Dynamic Programming+4
141. Linked List Cycle	Solve	Easy	42gearMobilitySystems+131	Hash Table Linked List+1
146. LRU Cache	Solve	Medium	Accolite+56	Design Doubly-Linked List+2
198. House Robber	Solve	Medium	Adobe+8	Array Dynamic Programming
200. Number of Islands	Solve	Medium	Adobe+40	Array Breadth-First Search+3
215. Kth Largest Element in an Array	Solve	Medium	ABCO+44	Array Divide and Conquer+3
239. Sliding Window Maximum	Solve	Hard	Accion Labs India+66	Array Heap (Priority Queue)+3
265. Paint House II	Solve	Hard	Facebook+2	Array Dynamic Programming
295. Find Median from Data Stream	Solve	Hard	Adobe+33	Data Stream Design+3
300. Longest Increasing Subsequence	Solve	Medium	Accenture+78	Array Binary Search+1
355. Design Twitter	Solve	Medium	Amazon+2	Design Hash Table+2
373. Find K Pairs with Smallest Sums	Solve	Medium	Amazon+4	Array Heap (Priority Queue)
394. Decode String	Solve	Medium	Adobe+16	Recursion Stack+1
416. Partition Equal Subset Sum	Solve	Medium	Amazon+5	Array Dynamic Programming
460. LFU Cache	Solve	Hard	Amazon+9	Design Doubly-Linked List+2
518. Coin Change II	Solve	Medium	Accenture+68	Array Dynamic Programming
523. Continuous Subarray Sum	Solve	Medium	Amazon+6	Array Hash Table+2
547. Number of Provinces	Solve	Medium	Amazon+6	Breadth-First Search Depth-First Search+2
646. Maximum Length of Pair Chain	Solve	Medium	Amazon+12	Array Dynamic Programming+2
664. Strange Printer	Solve	Hard	Google+2	Dynamic Programming String
680. Valid Palindrome II	Solve	Easy	Amazon+6	Greedy String+1
697. Degree of an Array	Solve	Easy	Adobe+6	Array Hash Table