Oracle Software Engineer Onsite Coding Questions

Round 1: 1 26# (2) 25# can be decoded as azzy Round 2: 1944, a little more difficult, find the number of people each person can see on their left and right sides Round 3: Bar raiser, regular bq Round

I had recently interviewed with Oracle for the position of IC4 at Oracle Health. - **Screening Round (30th Oct)** 1. What is OOPs? 2. Why is string immutable? 3. Serialization / Transient 4. Synchroni

Status : 2023 grad, Tier-1 college Position : OMCS / Technical Analyst / Programmer Analyst Location : Bangalore/Hyderabad Online coding assessment: This round consists of one DP question, very similar to minimum path...

LeetCode #146: LRU Cache. Difficulty: Medium. Topics: Hash Table, Linked List, Design, Doubly-Linked List. Asked at Oracle in the last 6 months.

LeetCode #20: Valid Parentheses. Difficulty: Easy. Topics: String, Stack. Asked at Oracle in the last 6 months.

LeetCode #347: Top K Frequent Elements. Difficulty: Medium. Topics: Array, Hash Table, Divide and Conquer, Sorting, Heap (Priority Queue), Bucket Sort, Counting, Quickselect. Asked at Oracle in the last 6 months.

LeetCode #1: Two Sum. Difficulty: Easy. Topics: Array, Hash Table. Asked at Oracle in the last 6 months.

LeetCode #3: Longest Substring Without Repeating Characters. Difficulty: Medium. Topics: Hash Table, String, Sliding Window. Asked at Oracle in the last 6 months.

LeetCode #200: Number of Islands. Difficulty: Medium. Topics: Array, Depth-First Search, Breadth-First Search, Union-Find, Matrix. Asked at Oracle in the last 6 months.

LeetCode #253: Meeting Rooms II. Difficulty: Medium. Topics: Array, Two Pointers, Greedy, Sorting, Heap (Priority Queue), Prefix Sum. Asked at Oracle in the last 6 months.

LeetCode #11: Container With Most Water. Difficulty: Medium. Topics: Array, Two Pointers, Greedy. Asked at Oracle in the last 6 months.

LeetCode #735: Asteroid Collision. Difficulty: Medium. Topics: Array, Stack, Simulation. Asked at Oracle in the last 6 months.

LeetCode #155: Min Stack. Difficulty: Medium. Topics: Stack, Design. Asked at Oracle in the last 6 months.

LeetCode #845: Longest Mountain in Array. Difficulty: Medium. Topics: Array, Two Pointers, Dynamic Programming, Enumeration. Asked at Oracle in the last 6 months.

LeetCode #208: Implement Trie (Prefix Tree). Difficulty: Medium. Topics: Hash Table, String, Design, Trie. Asked at Oracle in the last 6 months.

LeetCode #23: Merge k Sorted Lists. Difficulty: Hard. Topics: Linked List, Divide and Conquer, Heap (Priority Queue), Merge Sort. Asked at Oracle in the last 6 months.

LeetCode #239: Sliding Window Maximum. Difficulty: Hard. Topics: Array, Queue, Sliding Window, Heap (Priority Queue), Monotonic Queue. Asked at Oracle in the last 6 months.

LeetCode #1209: Remove All Adjacent Duplicates in String II. Difficulty: Medium. Topics: String, Stack. Asked at Oracle in the last 6 months.

LeetCode #127: Word Ladder. Difficulty: Hard. Topics: Hash Table, String, Breadth-First Search. Asked at Oracle in the last 6 months.

LeetCode #543: Diameter of Binary Tree. Difficulty: Easy. Topics: Tree, Depth-First Search, Binary Tree. Asked at Oracle in the last 6 months.