Blinkit Software Developer II Interview Questions and Answers

Machine coding round 90 mins duration. Based on designing Buy Now Pay Later system

2 medium level questions

Q1. Design an online coding platform
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Q1. A company FooBar has hosted an online auction system where any User(seller) can sell an object through an auction. Each auction has a lowest bid limit and highest bid limit. Any registered user(buyer) can ...read more
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Q1. They check communication
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Q2. About your background
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Basic general knowledge about Mathematics and general knowledge

Q1. What is your wark full kra
Ans. 
My work full kra is to ensure efficient operations and customer satisfaction while meeting business goals.
• Ensure smooth functioning of daily operations

• Maintain high levels of customer satisfaction through effective communication and problem-solving

• Meet business goals by analyzing data and implementing strategies

• Train and develop team members to improve performance

• Collaborate with other departments to achieve overall co
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Q2. What is your CTC and location
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Q3. What is your company name
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Q4. What is your expected CTC
Ans. 
I am expecting a competitive salary package based on my experience and skills.
• I am open to negotiation based on the company's policies and market standards.

• My expected CTC is in line with my current salary and industry standards.

• I am looking for a package that includes benefits such as health insurance, paid time off, and retirement plans.

• I am willing to discuss my expected CTC in detail during the interview process.
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Round duration - 60 Minutes
Round difficulty - Medium

This round was purely based on Data Structures and Algorithms . One has to be fairly comfortable in solving Algorithmic problems to pass this round . Both the questions asked were quite common and luckily I had already prepared them from CodeStudio and LeetCode.

Q1. 
Binary Tree Traversals Problem Statement
Given a Binary Tree with 'N' nodes, where each node holds an integer value, your task is to compute the In-Order, Pre-Order, and Post-Order traversals of the binar...read more
Ans. 
Compute the In-Order, Pre-Order, and Post-Order traversals of a Binary Tree given in level-order format.
• Implement functions to perform In-Order, Pre-Order, and Post-Order traversals of a Binary Tree.

• Use level-order input to construct the Binary Tree.

• Traverse the Binary Tree recursively to generate the required traversals.

• Ensure proper handling of null nodes represented by -1 in the input.

• Return the three traversals as
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Q2. 
Reverse Linked List Problem Statement
Given a Singly Linked List of integers, your task is to reverse the Linked List by altering the links between the nodes.
Input:
The first line of input is an intege...read more
Ans. 
Reverse a singly linked list by altering the links between nodes.
• Iterate through the linked list and reverse the links between nodes

• Use three pointers to keep track of the current, previous, and next nodes

• Update the links between nodes to reverse the list

• Return the head of the reversed linked list
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Round duration - 45 Minutes
Round difficulty - Medium

This round basically tested some concepts from Data Structures and File Manipulation .

Q1. 
Intersection of Two Arrays Problem Statement
Given two arrays A and B with sizes N and M respectively, both sorted in non-decreasing order, determine their intersection.
The intersection of two arrays in...read more
Ans. 
The problem involves finding the intersection of two sorted arrays efficiently.
• Use two pointers to iterate through both arrays simultaneously.

• Compare elements at the pointers and move the pointers accordingly.

• Handle cases where elements are equal and update the intersection array.

• Return the intersection array as the result.
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