Josh Technology vs Oracle Interview Questions
Josh Technology lists 35 LeetCode interview questions while Oracle lists 314. They share 19 problems — 54% of Josh Technology's bank and 6% of Oracle's. Focus on the overlap first, then drill into 16 Josh Technology-only and 295 Oracle-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 19 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Josh Technology and Oracle.
Step 2 — Company-specific depth: Add Josh Technology-specific problems like Reverse Nodes in Even Length Groups, Maximum Twin Sum of a Linked List, Count Good Nodes in Binary Tree and Oracle-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
19 Shared Questions
High-priority problems to practice for both Josh Technology and Oracle.
| Problem | Difficulty |
|---|---|
| Largest Number | Medium |
| Move Zeroes | Easy |
| Spiral Matrix | Medium |
| Merge Nodes in Between Zeros | Medium |
| Koko Eating Bananas | Medium |
| Remove K Digits | Medium |
| Invert Binary Tree | Easy |
| Daily Temperatures | Medium |
| Group Anagrams | Medium |
| Merge Two Sorted Lists | Easy |
| Rotate List | Medium |
| Reverse Nodes in k-Group | Hard |
| Largest Rectangle in Histogram | Hard |
| Flatten Binary Tree to Linked List | Medium |
| Remove Nth Node From End of List | Medium |
| Search in Rotated Sorted Array | Medium |
| Island Perimeter | Easy |
| Climbing Stairs | Easy |
| Binary Tree Level Order Traversal | Medium |
Unique to Josh Technology (16)
Problems in Josh Technology's list that do not appear at Oracle.
Unique to Oracle (295)
Problems in Oracle's list that do not appear at Josh Technology.
| Problem | Difficulty |
|---|---|
| LRU Cache | Medium |
| Longest Substring Without Repeating Characters | Medium |
| Number of Islands | Medium |
| Two Sum | Easy |
| Top K Frequent Elements | Medium |
| Sliding Window Maximum | Hard |
| Valid Parentheses | Easy |
| Merge k Sorted Lists | Hard |
| Merge Intervals | Medium |
| Meeting Rooms II | Medium |
| Longest Palindromic Substring | Medium |
| Minimum One Bit Operations to Make Integers Zero | Hard |
Frequently Asked Questions
How many LeetCode questions do Josh Technology and Oracle share?
Josh Technology and Oracle share 19 LeetCode interview questions. 16 problems appear only in Josh Technology's list and 295 appear only in Oracle's list.
What topics overlap most between Josh Technology and Oracle?
The most common shared topics between Josh Technology and Oracle are Array (9 shared questions), Linked List (6 shared questions), Stack (4 shared questions), String (3 shared questions), Two Pointers (3 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Josh Technology or Oracle?
Josh Technology has 8 Easy, 24 Medium, and 3 Hard questions. Oracle has 61 Easy, 194 Medium, and 59 Hard questions. Oracle has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Josh Technology and Oracle?
Start with the 19 shared problems since they cover what both companies ask most often. Then add 16 Josh Technology-specific and 20 Oracle-specific questions to round out your prep.