Dashboard Questions Topics Companies Sheets

Yahoo Interview Questions

82 coding problems asked in Yahoo interviews. Prepare for your technical interview with real questions.

Problems

Easy

Medium

Hard

Difficulty

All82 Easy31 Medium45 Hard6

Title	Solve	Difficulty	Companies	Topics
1. Two Sum	Solve	Easy	Accenture+29	Array Hash Table
2. Add Two Numbers	Solve	Medium	Adobe+14	Linked List Math+1
3. Longest Substring Without Repeating Characters	Solve	Medium	Adobe+20	Hash Table Sliding Window+1
7. Reverse Integer	Solve	Medium	Adobe+10	Math
9. Palindrome Number	Solve	Easy	Accenture+8	Math
13. Roman to Integer	Solve	Easy	Accenture+18	Hash Table Math+1
15. 3Sum	Solve	Medium	Adobe+21	Array Sorting+1
18. 4Sum	Solve	Medium	Adobe+8	Array Sorting+1
25. Reverse Nodes in k-Group	Solve	Hard	Amazon+8	Linked List Recursion
29. Divide Two Integers	Solve	Medium	Adobe+6	Bit Manipulation Math
31. Next Permutation	Solve	Medium	Adobe+19	Array Two Pointers
33. Search in Rotated Sorted Array	Solve	Medium	Accenture+91	Array Binary Search
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
70. Climbing Stairs	Solve	Easy	Adobe+8	Dynamic Programming Math+1
77. Combinations	Solve	Medium	Adobe+7	Backtracking
87. Scramble String	Solve	Hard	Yahoo	Dynamic Programming String
93. Restore IP Addresses	Solve	Medium	Amazon+6	Backtracking String
94. Binary Tree Inorder Traversal	Solve	Easy	Adobe+13	Binary Tree Depth-First Search+2
97. Interleaving String	Solve	Medium	Amazon+23	Dynamic Programming String
118. Pascal's Triangle	Solve	Easy	Adobe+17	Array Dynamic Programming
139. Word Break	Solve	Medium	Accenture+38	Array Dynamic Programming+4
146. LRU Cache	Solve	Medium	Accolite+56	Design Doubly-Linked List+2
161. One Edit Distance	Solve	Medium	Facebook+2	String Two Pointers
167. Two Sum II - Input Array Is Sorted	Solve	Medium	Adobe+5	Array Binary Search+1
176. Second Highest Salary	Solve	Medium	Accenture+10	Database
181. Employees Earning More Than Their Managers	Solve	Easy	Amazon+7	Database
189. Rotate Array	Solve	Medium	Amazon+6	Array Math+1
197. Rising Temperature	Solve	Easy	Adobe+5	Database
200. Number of Islands	Solve	Medium	Adobe+40	Array Breadth-First Search+3
217. Contains Duplicate	Solve	Easy	Adobe+8	Array Hash Table+1
227. Basic Calculator II	Solve	Medium	Amazon+9	Math Stack+1
229. Majority Element II	Solve	Medium	Accolite+21	Array Counting+2
234. Palindrome Linked List	Solve	Easy	Adobe+10	Linked List Recursion+2
287. Find the Duplicate Number	Solve	Medium	Adobe+30	Array Binary Search+2
309. Best Time to Buy and Sell Stock with Cooldown	Solve	Medium	Adobe+5	Array Dynamic Programming
322. Coin Change	Solve	Medium	Amazon+7	Array Breadth-First Search+1
350. Intersection of Two Arrays II	Solve	Easy	Adobe+4	Array Binary Search+3
387. First Unique Character in a String	Solve	Easy	Amazon+8	Counting Hash Table+2
403. Frog Jump	Solve	Hard	Adobe+21	Array Dynamic Programming
433. Minimum Genetic Mutation	Solve	Medium	Amazon+4	Breadth-First Search Hash Table+1
438. Find All Anagrams in a String	Solve	Medium	Adobe+9	Hash Table Sliding Window+1
445. Add Two Numbers II	Solve	Medium	Accenture+49	Linked List Math+1
479. Largest Palindrome Product	Solve	Hard	Yahoo	Enumeration Math
491. Non-decreasing Subsequences	Solve	Medium	Amazon+1	Array Backtracking+2
496. Next Greater Element I	Solve	Easy	Adobe+9	Array Hash Table+2
503. Next Greater Element II	Solve	Medium	Adobe+9	Array Monotonic Stack+1
513. Find Bottom Left Tree Value	Solve	Medium	Amazon+2	Binary Tree Breadth-First Search+2
561. Array Partition	Solve	Easy	Adobe+2	Array Counting Sort+2