Cisco vs Visa Interview Questions
Cisco lists 87 LeetCode interview questions while Visa lists 146. They share 34 problems — 39% of Cisco's bank and 23% of Visa's. Focus on the overlap first, then drill into 53 Cisco-only and 112 Visa-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 34 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Cisco and Visa.
Step 2 — Company-specific depth: Add Cisco-specific problems like House Robber, Predict the Winner, Lucky Numbers in a Matrix and Visa-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Visa skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
34 Shared Questions
High-priority problems to practice for both Cisco and Visa.
| Problem | Difficulty |
|---|---|
| Longest Palindromic Substring | Medium |
| Rotate Image | Medium |
| Spiral Matrix | Medium |
| LRU Cache | Medium |
| Merge Intervals | Medium |
| Word Search II | Hard |
| Maximum Subarray | Medium |
| Happy Number | Easy |
| Two Sum | Easy |
| Valid Parentheses | Easy |
| Trapping Rain Water | Hard |
| Longest Substring Without Repeating Characters | Medium |
| Merge Sorted Array | Easy |
| Best Time to Buy and Sell Stock | Easy |
| Letter Combinations of a Phone Number | Medium |
| Number of Islands | Medium |
| Reverse Linked List | Easy |
| 3Sum | Medium |
| Longest Consecutive Sequence | Medium |
| Meeting Rooms II | Medium |
| Word Search | Medium |
| Gas Station | Medium |
| Group Anagrams | Medium |
| Valid Palindrome | Easy |
| Top K Frequent Elements | Medium |
| Unique Paths | Medium |
| Restore IP Addresses | Medium |
| Subarray Sum Equals K | Medium |
| Reverse Words in a String | Medium |
| Beautiful Arrangement | Medium |
Showing top 30 of 34 shared problems.
Unique to Cisco (53)
Problems in Cisco's list that do not appear at Visa.
Unique to Visa (112)
Problems in Visa's list that do not appear at Cisco.
Frequently Asked Questions
How many LeetCode questions do Cisco and Visa share?
Cisco and Visa share 34 LeetCode interview questions. 53 problems appear only in Cisco's list and 112 appear only in Visa's list.
What topics overlap most between Cisco and Visa?
The most common shared topics between Cisco and Visa are Array (19 shared questions), String (10 shared questions), Hash Table (9 shared questions), Two Pointers (8 shared questions), Dynamic Programming (6 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Cisco or Visa?
Cisco has 24 Easy, 50 Medium, and 13 Hard questions. Visa has 32 Easy, 92 Medium, and 22 Hard questions. Visa has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Cisco and Visa?
Start with the 34 shared problems since they cover what both companies ask most often. Then add 20 Cisco-specific and 20 Visa-specific questions to round out your prep.