The Leather Laundry SDE Interview Questions and Answers

Q1. Traverse Binary Tree
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Q2. How does bittorent work
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Present a solution for a machine learning problem and create a PowerPoint presentation.

Q1. DSA ARRAY QUESTIONS EASY TO MEDIUM LEVEL
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Q1. Cloud computing
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Q2. Phising attack , Big data architecture
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Q1. Find minimum no. of increment operations to make array unique
Ans. 
To make an array of strings unique, count the number of duplicate elements and increment them accordingly.
• Iterate through the array and keep track of the frequency of each element.

• For each duplicate element, increment it to make the array unique.

• Return the total number of increment operations needed.
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Q2. Given a binary tree whose every node value is a number. find the sum of all the numbers that are formed from root to leaf paths
Ans. 
Sum all numbers formed from root to leaf paths in a binary tree
• Traverse the tree from root to leaf nodes, keeping track of the current number formed

• Add the current number to the sum when reaching a leaf node

• Recursively explore left and right subtrees
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ONLINE CODING TEST WITH BASIC CODING AND DSA QS

Q1. What is oops and its applications and types of oops
Ans. 
OOPs stands for Object-Oriented Programming. It is a programming paradigm based on the concept of objects, which can contain data and code.
• OOPs allows for the organization of code into reusable components called objects.

• Encapsulation, inheritance, and polymorphism are key principles of OOPs.

• Examples of OOPs languages include Java, C++, and Python.
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Linked list questions and DFS problems

Q1. Why do you want to come in Byju's
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