MakeMyTrip Senior Software Developer Interview Questions and Answers

45 MCQ Which includes below topics
Basic core Java
Database
Spring
Hibernate
Angular
One program based on core Java logic

Q1. To find the kth minimum element from BST
Ans. 
To find the kth minimum element from a Binary Search Tree (BST)
• Perform an in-order traversal of the BST to get elements in sorted order

• Return the kth element from the sorted list

• Time complexity: O(n) where n is the number of nodes in the BST
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Q2. Basic OOPs question like inheritance encapsulation
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Q1. In a BST two numbers are swapped find swapped nos.
Ans. 
To find swapped numbers in a BST, perform inorder traversal and keep track of previous node.
• Perform inorder traversal of the BST

• Keep track of the previous node while traversing

• If at any point, the current node's value is less than the previous node's value, those are the swapped numbers
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Q2. What you did in college projects
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Q1. Puzzles: find the fastest 3 horses in 25 horse race with a race and 5 horses can be run at a time
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Q2. Weakness and strength. how a friend will describe you
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Q1. Core : DBMS , oops in depth coding: basic DSA questions based on Arrays, String.
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Q1. He asked me graph questions ( medium level ) based on a node to root, and min cost to target. note: if you really want to crack the yata.com interview practice graph question and they ask a leetcode questi...read more
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Q1. Discussion about Hashmaps.
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Q2. How to make Spring Applications?
Ans. 
Spring applications can be made using Spring Boot, which simplifies the setup and configuration process.
• Use Spring Initializr to create a new Spring Boot project

• Add dependencies in the pom.xml file for required Spring modules

• Create Java classes with annotations like @Controller, @Service, @Repository, etc.

• Define application properties in application.properties or application.yml file

• Run the application using the main m
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Q1. Discussion about Goals.
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Q2. Discussed points from Resume
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Round duration - 60 minutes
Round difficulty - Medium

Timing was fine - It was in the afternoon
Interviewer was friendly and helpful

Q1. Find Duplicates In Array
You are given an array/list 'ARR' consisting of N integers, which contains elements only in the range 0 to N - 1. Some of the elements may be repeated in 'ARR'. You...read more
Ans. 
- Ask for all the edge cases
- Tell approach first
- When the approach is approved by the interviewer, start coding
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Round duration - 60 minutes
Round difficulty - Medium

- Timing was fine - Afternoon
- Interviewer was friendly

Q1. System Design Question
Design Caching library
Ans. 
Tip 1 : Clear all edge cases
Tip 2 : Design solution for small number of use cases first
Answered by CodingNinjas
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Round duration - 60 minutes
Round difficulty - Medium

- Timing was fine - Afternoon
- Interviewer was friendly

Q1. Puzzle
Number of edges in 10 * 10 cube
Ans. 
Tip  : Solve for smaller cube first
Answered by CodingNinjas
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