Oyo Rooms interview questions
Online test → Technical → Technical·69% entry level
DSA
Showing 36 of 420 reported in this area
Find the median of a stream of integers (running median).
Find the longest increasing subsequence in an array
Boundary traversal of a binary tree
Find the diameter of a binary tree.
Print the left view of a binary tree
Connect nodes at the same level in a binary tree
Count possible decodings of a given digit sequence
Find the longest palindromic substring in a string
Detect and remove loop in a linked list
Longest Consecutive Sequence in an array
Print all permutations of a given string
Find the largest subarray with equal number of 0s and 1s
Find the next greater number with the same set of digits
Print all nodes at distance K from a given node in a binary tree
Find the maximum size square sub-matrix with all 1s in a given binary matrix.
Clone a linked list with next and arbitrary (random) pointer
Find the maximum of all subarrays of size K using a sliding window
Count the number of ways to travel a cyclic path in N steps in a triangular pyramid
Reverse a singly linked list
Check if a binary tree is a Binary Search Tree (BST)
Find the missing number in an Arithmetic Progression
Generate Gray code sequence for a given number of bits
Given an array where each element represents the maximum number of steps that can be jumped forward from that element, find the minimum number of jumps to reach the end
Coin Change problem
Minimum cost path in a matrix
Next Greater Frequency Element
Reverse a stack using recursion
Remove BST keys in a given range
Implement merge sort for an array
Rotate a binary tree to the right
Design and implement an LRU Cache.
Convert a string into zigzag pattern
Print the top view of a binary tree.
Connect ropes with minimum total cost
Implement merge sort on a linked list
Print the right view of a binary tree
CS fundamentals
Showing 13 of 256 reported in this area
What is the difference between a process and a thread?
What is the difference between a mutex and a semaphore?
Explain ACID properties in DBMS
Explain the differences between TCP and UDP.
Explain Peterson’s Algorithm
Explain database normal forms.
Explain how a DNS lookup works
Explain design patterns in Java
Explain fork vs exec system calls
Explain CPU scheduling algorithms.
Explain paging in operating systems
Explain database indexing techniques
Explain how indexing works in an RDBMS.
System design
Showing 5 of 74 reported in this area
Design a chess game (Low Level Design)
Design a database schema.
Design a vending machine.
Design a Ludo or Snake & Ladders game
Design classes for a game of billiards
Behavioural
Showing 3 of 18 reported in this area
How would you convince a lead engineer to switch from Oracle to MySQL for a new project?
As a hotel owner, how would you decide the pricing for your hotel rooms? What factors would you consider?
If you are a lead engineer and a junior proposes using MySQL, how would you evaluate and handle the situation?
Puzzles
Showing 3 of 6 reported in this area
Puzzle: Rat and poison problem
100 doors puzzle: determine which doors remain open after 100 passes
There are three buckets with some balls in each. You can double the number of balls in one bucket by taking the required number of balls from another bucket. Determine whether it is possible to equalize all three buckets using only this operation.
Showing 60 of 660 questions. Ranked by how often the same question came back across reports.
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What questions does Oyo Rooms ask?
Candidate interview reports most often cover DSA (54%) and CS fundamentals (33%).
How many rounds does Oyo Rooms interview have?
Candidate interview reports show an average of 3.4 rounds per experience, with a typical sequence of Online test → Technical → Technical. Individual interview paths can vary.
Is the Oyo Rooms interview hard?
Among questions with a reported difficulty, the mix is easy 23%, medium 65%, hard 12%.