kept the call i have written the code using Brute force force first and leter i will only optimise it. but people intervened and said its 4 lines of code and then i have optimised it and then they few of the tests did'nt passed due to a single resetting i used 1 instead 0 so

1. Application / Resume Screening * You apply through Oracle careers portal or referral. * Recruiter reviews: * Technical skills * Experience * Projects * Domain knowledge * If shortlisted, recruiter contacts you. 2. Recruiter / HR Screening Round Usually 20–30 mins call. Focus Areas: * Current role and experience * Notice period * Salary expectations * Why Oracle? * Communication skills * Work location / relocation 3. Technical Round 1 (Coding / Core Skills) Usually 45–60 mins. For Java / Backend Roles: * Core Java * OOP concepts * Collections * Multithreading * Exception handling * Spring Boot * REST APIs * SQL basics * Data Structures Coding Questions: * Arrays / Strings * HashMap problems * Linked list * Simple algorithms 4. Technical Round 2 (Advanced / System Design) 45–60 mins. Focus Areas: * Microservices architecture * Design patterns * Database design * Performance tuning * Caching * Messaging systems (Kafka, RabbitMQ) * Security * Scalability For Experienced Candidates: * Real project architecture * Debugging production issues * CI/CD * Cloud knowledge