RedBus SDE Interview Questions and Answers

Q1. Coding + DS concepts
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Q2. DP problem , maximum sum subarray
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There is a question based on Rest API and another question on Java

The assignment was to display a flight list and implement sort and filter functionality.

Basic of react native concepts and live machine coding round

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. Data Structures and Theoretical Java and SQL concepts like - views, indexes, DML
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Programs on Sorting and Search Algorithms and Core Java

Q1. What are the types of data.
Ans. 
Types of data include numerical, categorical, ordinal, and binary.
• Numerical data includes continuous and discrete values, such as height and age.

• Categorical data includes non-numeric values, such as colors and types of fruit.

• Ordinal data includes values with a specific order, such as rankings and ratings.

• Binary data includes only two possible values, such as true/false and yes/no.
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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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General reasoning and Mathmatics Aptitude

Q1. Core Java and Coding questions
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