Chai Point Software Engineer Interview Questions and Answers

Q1. Python functions
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Q2. Join on multiple tables
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3 questions easy-medium level leetcode problem I solved 2 completely and 3rd question partially (9/15 test cases passed) to move on to 2nd round

Q1. Implement an app similar to splitwise
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Implement your own state management in React and integrate it into a React application.

Got a leetcode easy question

Round duration - 45 minutes
Round difficulty - Easy

This was a coding test with 2 DSA questions.

Q1. 
Merge Two Sorted Arrays Problem Statement
Given two sorted integer arrays ARR1 and ARR2 of size M and N, respectively, merge them into ARR1 as one sorted array. Assume that ARR1 has a size of M + N to hol...read more
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Q2. 
Count Ways to Reach the Nth Stair
Given a number of stairs, starting from the 0th stair, calculate the number of distinct ways you can reach the Nth stair. You can climb either one step or two steps at a ...read more
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Round duration - 60 minutes
Round difficulty - Medium

This was the first round with questions on DSA and Low Level design.

Q1. 
Trapping Rain Water Problem Statement
You are given a long type array/list ARR of size N, representing an elevation map. The value ARR[i] denotes the elevation of the ith bar. Your task is to determine th...read more
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Q2. Can you provide a low-level design of a hotel management system?
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Q1. Given array representing building, find which buildings will receive sunlight
Ans. 
Find buildings receiving sunlight from given array of buildings
• Iterate through array and keep track of maximum height seen so far

• If current building height is greater than maximum height, it will receive sunlight

• Add index of buildings receiving sunlight to result array
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Q2. Convert number into US sentence
Ans. 
Convert a given number into a sentence in US format.
• Divide the number into groups of three digits from right to left.

• Convert each group into words using a lookup table.

• Add appropriate suffixes like thousand, million, billion, etc.

• Combine all the groups into a sentence.
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I was asked questions about a doubly linked list, specifically regarding how to add songs to a playlist and play them from the start, end, or a specified ID. Additionally, I was required to delete a song and report on the total number of times each song was played overall and by each individual.