Coupang Interview Questions and Answers for Experienced

Very impressive able to solve 100 coding questions within 10 mins

Q1. Find min in array
Ans. 
Find the minimum string in an array of strings.
• Iterate through the array and compare each string to find the minimum.

• Use a built-in function like sort() to sort the array and then return the first element.

• Consider using a loop to compare each element with the current minimum.
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Q2. Find max in array
Ans. 
Find the maximum value in an array of strings.
• Convert the strings to numbers if needed before finding the maximum value.

• Use a loop to iterate through the array and compare each element to find the maximum value.
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Q1. Basic array question
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Q1. Find the first circular tour that visits all petrol pumps
Ans. 
The first circular tour that visits all petrol pumps can be found using the concept of a circular linked list.
• Create a circular linked list with each node representing a petrol pump

• Calculate the difference between petrol available at each pump and the distance to the next pump

• Start from a pump where the sum of differences is positive and traverse the circular linked list until completing the tour
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First round was a aptitude test of 25 question

Q1. Oops concept in java
Ans. 
Oops concept in Java refers to Object-Oriented Programming principles like inheritance, encapsulation, polymorphism, and abstraction.
• Inheritance allows a class to inherit properties and behavior from another class.

• Encapsulation involves bundling data and methods that operate on the data into a single unit.

• Polymorphism allows objects to be treated as instances of their parent class.

• Abstraction hides the implementation d...read more
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Q2. Basic multi threading questions
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Q1. Code to make a pattern and explain each and every line of code
Ans. 
Code to create a pattern and explain each line of code
• Start by defining the number of rows and columns in the pattern

• Use nested loops to iterate through each row and column

• Decide the pattern you want to create and use conditional statements to determine the output for each position
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Q2. Puzzle: In how many minimum cut u can cut a cake in 8 piece
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Excel ,logic test,SA topic

Q1. Personal background Education
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Q2. Professional experience
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Q1. Personal. Package n all
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Q1. Tell about typing speed
Ans. 
My typing speed is 80 words per minute with 98% accuracy.
• Typing speed: 80 words per minute

• Accuracy: 98%

• Experience with typing reports, emails, and documents efficiently
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Q2. How to handle late delivery
Ans. 
Handle late delivery by communicating with the customer, offering solutions, and ensuring future deliveries are on time.
• Communicate with the customer about the delay and apologize for the inconvenience.

• Offer solutions such as a discount on the next purchase or expedited shipping.

• Ensure future deliveries are on time by monitoring the process closely and addressing any issues promptly.
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