Jio Platforms Software Development Engineer Interview Questions, Process, and Tips

Q1. Explain merge sort code
Ans. 
Merge sort is a divide and conquer algorithm that recursively splits an array into halves, sorts them, and then merges them back together.
• Divide the array into two halves

• Recursively sort each half

• Merge the sorted halves back together
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Q1. String Match KMP algorithm
Ans. 
The KMP algorithm is used for pattern matching in strings.
• KMP algorithm avoids unnecessary comparisons by utilizing a prefix-suffix table.

• It has a time complexity of O(n + m), where n is the length of the text and m is the length of the pattern.

• The algorithm is efficient for large texts and patterns with repetitive characters.

• Example: Searching for 'abc' in 'ababcabc' using KMP algorithm will return the index 2.
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Q2. Sort student based on first name
Ans. 
Sort an array of student names based on their first names.
• Use a sorting algorithm like bubble sort or quicksort to sort the array.

• Compare the first names of each pair of students and swap them if necessary.

• Repeat the process until the array is sorted.
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Q1. 3 Sum standard leetcode
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Q2. Sql basic questions
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Q1. Basic behavioural questions
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Medium level questions

Q1. Focus on project and technology related questions
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Q1. Some coding and skills mentioned in resume based questions.
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Q1. Simple or normal HR types question.
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Q1. Java Core, Spring Boot, SQL
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Q2. Collections, Multithreading
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Q3. Streams, Microservices
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Q1. General Discussion
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Q2. Salary Discussion
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There were around 15 questions, 2 were coding questions based on graphs and DP.

Q1. Quick sort implementation
Ans. 
Quick sort is a popular sorting algorithm that uses divide and conquer strategy.
• Divide the array into two sub-arrays based on a pivot element

• Recursively sort the sub-arrays

• Combine the sorted sub-arrays to get the final sorted array
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Q2. BST node insertion
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Q3. Stack related questions
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