3clogic Software Engineer Interview Questions and Answers

Q1. Given the react machine coding example
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Q1. Explain about your projects
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Q1. Oops related questions
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Q2. C language quizzes
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Coding Rount
DSA Round + Puzzle
SQL + Project Discussion
JS

Dsa problems dp and tress problem

Q1. Tell me about your self
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Q2. Projects and intership
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Q1. Given an array Reverse array
Ans. 
Reverse array of strings
• Iterate through the array and swap elements from start to end

• Use two pointers, one at the beginning and one at the end, and swap elements until they meet
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Q2. Giaven a string Reverse string
Ans. 
Reverse a given string
• Use built-in functions like reverse() or loop through the string in reverse order

• Create a new string and append characters from the original string in reverse order

• Convert the string to an array of characters, reverse the array, and then join it back into a string
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Q3. Given array find sum of all elements
Ans. 
Calculate sum of all elements in a given array of strings
• Iterate through the array and convert each element to integer before adding to sum

• Handle edge cases like empty array or non-numeric elements

• Return the final sum after iterating through all elements
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Coding exercise related to probability

Q1. Database design for ride hailing service like uber, ola
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Q2. Tech stack needed to build a real time application
Ans. 
Tech stack for real time applications includes WebSocket, Node.js, Redis, and MongoDB.
• Use WebSocket for real-time communication between client and server

• Node.js for server-side logic and handling multiple connections efficiently

• Redis for caching and storing real-time data

• MongoDB for persistent data storage and retrieval
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Consisted of aptitude and coding output questions

Coding test was given with three questions .we have to write in on word in 45 mins

Q1. They asked puzzles and other usual questions
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