CARS24 Software Engineer Interview Questions and Answers

Q1. Create pagination component using an api show the data for the pages
Ans. 
Create a pagination component using an API to display data for different pages.
• Use API to fetch data for each page

• Implement pagination logic to display data for each page

• Allow users to navigate between pages
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Q1. Golang specific question regarding worker pool implementation
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Q1. He asked to invert a binary tree
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Q2. Deep dive in projects
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Q3. Asked me indept js questions
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So after Resume shortlisting you have Round 1 as Programming Test (60%) & Aptitude Test (40%) in which you will be asked 15 aptitude questions and 2 DSA problems. You will get 1 hour to write the test.
DSA problems:
1. Merge 2 sorted arrays
2. find the target sum in given array and return their indexes

Q1. If you clear Round 1 then you will go forward to Round 2 which is one-to-one technical round. In this round you will be asked leetcode problems and some conceptual questions. I was asked to Find the Max su...read more
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Q2. Length of Longest Substring with distinct character
Ans. 
Find the length of the longest substring with distinct characters in a given string.
• Use a sliding window approach to keep track of the current substring.

• Maintain a set to store the distinct characters in the current substring.

• Update the maximum length of the substring whenever a longer substring is found.
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Q3. Find Max sum of subarray.
Ans. 
The maximum sum of a subarray is to be found.
• Use Kadane's algorithm to find the maximum sum of a subarray.

• Initialize two variables: maxSum and currentSum.

• Iterate through the array and update currentSum by adding the current element.

• If currentSum becomes negative, reset it to 0.

• If currentSum is greater than maxSum, update maxSum.

• Return maxSum as the maximum sum of a subarray.
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Q1. Last round was Head of engineering round in this you will be asked some technical questions like: Apply Merge sort on a Linked List
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Q2. 25 Horses: Google interview problem
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