Oracle vs Visa Interview Questions
Oracle lists 314 LeetCode interview questions while Visa lists 146. They share 72 problems — 23% of Oracle's bank and 49% of Visa's. Focus on the overlap first, then drill into 242 Oracle-only and 74 Visa-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 72 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Oracle and Visa.
Step 2 — Company-specific depth: Add Oracle-specific problems like Merge k Sorted Lists, Minimum One Bit Operations to Make Integers Zero, Asteroid Collision and Visa-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Oracle skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
72 Shared Questions
High-priority problems to practice for both Oracle and Visa.
| Problem | Difficulty |
|---|---|
| LRU Cache | Medium |
| Longest Substring Without Repeating Characters | Medium |
| Number of Islands | Medium |
| Two Sum | Easy |
| Group Anagrams | Medium |
| Top K Frequent Elements | Medium |
| Sliding Window Maximum | Hard |
| Valid Parentheses | Easy |
| Merge Intervals | Medium |
| Meeting Rooms II | Medium |
| Longest Palindromic Substring | Medium |
| Spiral Matrix | Medium |
| LFU Cache | Hard |
| Search in Rotated Sorted Array | Medium |
| Container With Most Water | Medium |
| 3Sum | Medium |
| Reverse Linked List | Easy |
| Trapping Rain Water | Hard |
| Longest Consecutive Sequence | Medium |
| Valid Anagram | Easy |
| Rotting Oranges | Medium |
| Maximum Subarray | Medium |
| Best Time to Buy and Sell Stock | Easy |
| Binary Tree Right Side View | Medium |
| Count Ways To Build Good Strings | Medium |
| Course Schedule | Medium |
| Longest Common Prefix | Easy |
| Find Median from Data Stream | Hard |
| Sort Colors | Medium |
| Maximum Number of Events That Can Be Attended | Medium |
Showing top 30 of 72 shared problems.
Unique to Oracle (242)
Problems in Oracle's list that do not appear at Visa.
Unique to Visa (74)
Problems in Visa's list that do not appear at Oracle.
Frequently Asked Questions
How many LeetCode questions do Oracle and Visa share?
Oracle and Visa share 72 LeetCode interview questions. 242 problems appear only in Oracle's list and 74 appear only in Visa's list.
What topics overlap most between Oracle and Visa?
The most common shared topics between Oracle and Visa are Array (19 shared questions), Sorting (9 shared questions), Hash Table (8 shared questions), Two Pointers (7 shared questions), String (6 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Oracle or Visa?
Oracle has 61 Easy, 194 Medium, and 59 Hard questions. Visa has 32 Easy, 92 Medium, and 22 Hard questions. Oracle has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Oracle and Visa?
Start with the 72 shared problems since they cover what both companies ask most often. Then add 20 Oracle-specific and 20 Visa-specific questions to round out your prep.