Salesforce Interview Questions (189)

Practice real interview problems from Salesforce

Title	Solution	Practice	Difficulty	Companies	Topics
3. Longest Substring Without Repeating Characters	Solution	Solve	Medium	Accenture+111	Hash Table Sliding Window+1
5. Longest Palindromic Substring	Solution	Solve	Medium	Accenture+75	Dynamic Programming String+1
6. Zigzag Conversion	Solution	Solve	Medium	Amazon+18	String
11. Container With Most Water	Solution	Solve	Medium	Accenture+57	Array Greedy+1
12. Integer to Roman	Solution	Solve	Medium	Accenture+31	Hash Table Math+1
15. 3Sum	Solution	Solve	Medium	Accenture+60	Array Sorting+1
17. Letter Combinations of a Phone Number	Solution	Solve	Medium	Accenture+39	Backtracking Hash Table+1
33. Search in Rotated Sorted Array	Solution	Solve	Medium	Accolite+54	Array Binary Search
39. Combination Sum	Solution	Solve	Medium	Airbnb+29	Array Backtracking
49. Group Anagrams	Solution	Solve	Medium	Accolite+90	Array Hash Table+2
50. Pow(x, n)	Solution	Solve	Medium	Accenture+22	Math Recursion
53. Maximum Subarray	Solution	Solve	Medium	Accenture+65	Array Divide and Conquer+1
54. Spiral Matrix	Solution	Solve	Medium	Accenture+52	Array Matrix+1
56. Merge Intervals	Solution	Solve	Medium	Accenture+108	Array Sorting
75. Sort Colors	Solution	Solve	Medium	Adobe+33	Array Sorting+1
79. Word Search	Solution	Solve	Medium	Accenture+39	Array Backtracking+2
98. Validate Binary Search Tree	Solution	Solve	Medium	Adobe+19	Binary Search Tree Binary Tree+2
105. Construct Binary Tree from Preorder and Inorder Traversal	Solution	Solve	Medium	Adobe+10	Array Binary Tree+3
134. Gas Station	Solution	Solve	Medium	Accolite+26	Array Greedy
139. Word Break	Solution	Solve	Medium	Amazon+34	Array Dynamic Programming+4
146. LRU Cache	Solution	Solve	Medium	Adobe+127	Design Doubly-Linked List+2
152. Maximum Product Subarray	Solution	Solve	Medium	Adobe+20	Array Dynamic Programming
155. Min Stack	Solution	Solve	Medium	Adobe+35	Design Stack
162. Find Peak Element	Solution	Solve	Medium	Accenture+33	Array Binary Search
200. Number of Islands	Solution	Solve	Medium	Accenture+86	Array Breadth-First Search+3
207. Course Schedule	Solution	Solve	Medium	Adobe+41	Breadth-First Search Depth-First Search+2
210. Course Schedule II	Solution	Solve	Medium	Amazon+32	Breadth-First Search Depth-First Search+2
213. House Robber II	Solution	Solve	Medium	Amazon+20	Array Dynamic Programming
215. Kth Largest Element in an Array	Solution	Solve	Medium	Accenture+44	Array Divide and Conquer+3
221. Maximal Square	Solution	Solve	Medium	Airbnb+29	Array Dynamic Programming+1
236. Lowest Common Ancestor of a Binary Tree	Solution	Solve	Medium	Adobe+22	Binary Tree Depth-First Search+1
238. Product of Array Except Self	Solution	Solve	Medium	Accenture+43	Array Prefix Sum
253. Meeting Rooms II	Solution	Solve	Medium	Adobe+42	Array Greedy+4
255. Verify Preorder Sequence in Binary Search Tree	Solution	Solve	Medium	Expedia+4	Array Binary Search Tree+5
287. Find the Duplicate Number	Solution	Solve	Medium	Accenture+22	Array Binary Search+2
289. Game of Life	Solution	Solve	Medium	Acorns+15	Array Matrix+1
300. Longest Increasing Subsequence	Solution	Solve	Medium	Accenture+29	Array Binary Search+1
322. Coin Change	Solution	Solve	Medium	Accenture+41	Array Breadth-First Search+1
337. House Robber III	Solution	Solve	Medium	Amazon+13	Binary Tree Depth-First Search+2
347. Top K Frequent Elements	Solution	Solve	Medium	Adobe+50	Array Bucket Sort+6
353. Design Snake Game	Solution	Solve	Medium	Amazon+9	Array Design+3
355. Design Twitter	Solution	Solve	Medium	Adobe+14	Design Hash Table+2
366. Find Leaves of Binary Tree	Solution	Solve	Medium	Amazon+5	Binary Tree Depth-First Search+1
370. Range Addition	Solution	Solve	Medium	Amazon+2	Array Prefix Sum
394. Decode String	Solution	Solve	Medium	Activision+40	Recursion Stack+1
416. Partition Equal Subset Sum	Solution	Solve	Medium	Amazon+16	Array Dynamic Programming
437. Path Sum III	Solution	Solve	Medium	Amazon+10	Binary Tree Depth-First Search+1
443. String Compression	Solution	Solve	Medium	Adobe+42	String Two Pointers
494. Target Sum	Solution	Solve	Medium	Amazon+10	Array Backtracking+1
532. K-diff Pairs in an Array	Solution	Solve	Medium	Amazon+7	Array Binary Search+3