Oracle SDE-intern interview questions

4 or 3 rounds it depends on the company i got 4 round some got 3 round OA+ tech1 + tech2 + tech3 or hr it was easy but i dont know why i get rejected

"Detect if a directed graph has a cycle." This problem tests understanding of DFS, visited sets, and recursion stacks. This problem is frequently asked in technical interviews to assess a candidate's grasp of graph traversal algorithms, particularly in scenarios involving cycle detection in directed graphs using depth-first search (DFS). Mastery of concepts like maintaining a visited set and a recursion stack is crucial to avoid redundant checks and ensure accurate detection of cycles. Understanding this not only helps in solving LeetCode problems but also builds a strong foundation for more advanced graph-related challenges encountered in real-world applications.