# PropTiger Interview (On-Campus for FTE)

Online Test : Online test consists of 2 sections : 1st Section :Â 30 MCQ questionsÂ based on cs topics like os, dbms, sorting, searching, time complexity, trees and basic pointers questions. (You can practice here : https://www.geeksforgeeks.org/geeksquiz-home/ ) 2nd Section : 4 Coding Questions 1 : Given inorder and preorder traversal of a binary tree you have to return postorder traversal. https://www.geeksforgeeks.org/print-postorder-from-given-inorder-and-preorder-traversals 2 : Given an array of integers return the duplicate ones in sorted order. 3 : Given a sentence(contains alphanumeric characters) you have to reverse each word and capitalize the first letter of each word. 4 : Given an array of positive and negative integers find the maximum sum obtained by flipping a continuous subarray( flipping means positive to negative and negative to positive). Similar Question : https://www.geeksforgeeks.org/largest-sum-contiguous-subarray Time Limit : 2:30 Hrs 3 out of 4 coding questions and some mcq were enough for next round. About 26 students were shortlisted for F2F interviews.   Round 1 FTF Technical Round (1:15 hours) : The interviewer asked questions from theseÂ  topics : Data Structures, DBMS. Questions were: 1: Find an element in rotated sorted array. https://www.geeksforgeeks.org/search-an-element-in-a-sorted-and-pivoted-array 2: Convert a binary tree to a doubly linked list. http://(https://www.geeksforgeeks.org/convert-a-given-binary-tree-to-doubly-linked-list-set-2/ 3 : DBMS Normal Forms. 4 : SQL Joins and Nested Queries. 5 : Discussion about the Archictecture of Projects. 9 students were selected for round 2.   Round 2 FTF Technical Round (1:15 hours): The interviewer asked questions from theseÂ  topics : OS, Data Structures, DBMS, OOP Concepts, System Design. Questions were: 1: System Design Questions on Projects. 2: Given a list of numbers find the top k largest elements. (Discussion about Different Variations, Different Solutions and their Time and Space Complexity ) 3: Java OOP Concepts (Some Simple Defnitions and Some Tough Questions ). 4: Custom Sorting Functions. 5: Hashing Concepts. 6: Os Deadlock ( Different Variations of Standard Problems like Producer Consumer Problem). All 9 students were selected for HR round.   Round 3 HRÂ  Round (30 minutes): Standard HR questions. The HR was quiet friendly so we had a nice conversation. Questions â€“
1. Tell me about yourself.
2. How do you come to know about Proptiger?
3. If I am okay to work at Gurgaon office.
4. Do you know any startups in different fields?
5. What is my preference Back end or Front end?
Finally, 5 students were selected. I was one of them. Thanks.

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