Cisco vs Yahoo Interview Questions
Cisco lists 87 LeetCode interview questions while Yahoo lists 34. They share 12 problems — 14% of Cisco's bank and 35% of Yahoo's. Focus on the overlap first, then drill into 75 Cisco-only and 22 Yahoo-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 12 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Cisco and Yahoo.
Step 2 — Company-specific depth: Add Cisco-specific problems like Longest Palindromic Substring, House Robber, Predict the Winner and Yahoo-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Cisco skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
12 Shared Questions
High-priority problems to practice for both Cisco and Yahoo.
| Problem | Difficulty |
|---|---|
| Spiral Matrix | Medium |
| LRU Cache | Medium |
| Two Sum | Easy |
| Valid Parentheses | Easy |
| Linked List Cycle | Easy |
| Decode String | Medium |
| Reverse Linked List | Easy |
| Meeting Rooms II | Medium |
| Word Search | Medium |
| Top K Frequent Elements | Medium |
| Restore IP Addresses | Medium |
| Subarray Sum Equals K | Medium |
Unique to Cisco (75)
Problems in Cisco's list that do not appear at Yahoo.
| Problem | Difficulty |
|---|---|
| Longest Palindromic Substring | Medium |
| House Robber | Medium |
| Predict the Winner | Medium |
| Lucky Numbers in a Matrix | Easy |
| Rotate Image | Medium |
| Fizz Buzz | Easy |
| Snakes and Ladders | Medium |
| Number of Valid Words in a Sentence | Easy |
| Maximum Difference Between Increasing Elements | Easy |
| Merge Intervals | Medium |
| Find Third Transaction | Medium |
| Implement Router | Medium |
Unique to Yahoo (22)
Problems in Yahoo's list that do not appear at Cisco.
Frequently Asked Questions
How many LeetCode questions do Cisco and Yahoo share?
Cisco and Yahoo share 12 LeetCode interview questions. 75 problems appear only in Cisco's list and 22 appear only in Yahoo's list.
What topics overlap most between Cisco and Yahoo?
The most common shared topics between Cisco and Yahoo are Array (6 shared questions), Hash Table (5 shared questions), String (4 shared questions), Linked List (3 shared questions), Matrix (2 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Cisco or Yahoo?
Cisco has 24 Easy, 50 Medium, and 13 Hard questions. Yahoo has 11 Easy, 20 Medium, and 3 Hard questions. Cisco has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Cisco and Yahoo?
Start with the 12 shared problems since they cover what both companies ask most often. Then add 20 Cisco-specific and 20 Yahoo-specific questions to round out your prep.