MathCo Software Developer Interview Questions and Answers

Start of The Loop in LinkedList.
Length of Loop in LinkedList

API Contract for Notification sending via SMS and Email

Array duplicates and burn binary tree

Q1. Project specific
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Q1. Explain joins in SQL
Ans. 
Joins in SQL are used to combine rows from two or more tables based on a related column between them.
• Joins are used to retrieve data from multiple tables based on a related column between them

• Types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN

• INNER JOIN returns rows when there is at least one match in both tables

• LEFT JOIN returns all rows from the left table and the matched rows from the right table

• ...read more
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Q2. What are object and class in OOPs?
Ans. 
Objects are instances of classes in OOPs. Classes are blueprints for creating objects with attributes and methods.
• Objects are instances of classes

• Classes are blueprints for creating objects

• Classes define attributes and methods for objects

• Example: Class 'Car' with attributes like 'color' and methods like 'drive'
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DSA Round - Need to explain the answer

1hr, hacker rank, was a good problem to solve

As a recent college graduate, I am actively seeking employment opportunities where I can effectively apply my
skills. Currently pursuing a Bachelor of Engineering in Artificial Intelligence and Machine Learning, I strive to push
my limits to explore new possibilities and acquire additional skills. Aspiring to work in a growth-oriented
environment where I can achieve excellence under existing working conditions, and contribute to the goals of the
organization.

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