RingCentral SDE Interview Questions and Answers

General questions like reasoning and maths

General DSA questions were asked like Linked list etc

It consisted of both technical programming and theoretical concepts. C++ and SQL

Q1. Consisted of scenario based questions from technical domain.
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Q2. Differentiate all sorting algorithms
Ans. 
Sorting algorithms differ in their approach to sorting elements in an array.
• Bubble Sort - compares adjacent elements and swaps them if they are in the wrong order

• Merge Sort - divides the array into two halves, sorts them, and then merges them

• Quick Sort - picks a pivot element and partitions the array around the pivot

• Selection Sort - repeatedly selects the minimum element and swaps it with the current element

• Insertion S...read more
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Q1. Simple resume related non technical.
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Basic dp and graph questions

Q1. Left leaf nodes sum in a binary tree
Ans. 
Calculate the sum of all left leaf nodes in a binary tree.
• Traverse the binary tree using depth-first search (DFS)

• Check if a node is a leaf node and if it is a left child

• Add the value of the left leaf node to the sum

• Recursively traverse the left and right subtrees
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Q2. About my past projects
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Q1. Discussion about myself and my projects
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Aptitude and technical questions

2 coding questions with choice of language

Q1. Technical questions
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Q2. Programming questions
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Q1. Leetcode- Climb stairs (medium)
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Q2. Reverse linkedlist
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Q1. Leetcode- Rotten oranges matrix
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Process for freshers-

Go through RS Agarwal book and be ready for logical reasoning questions

Criteria for selection is 75% so make sure to select right ans

There will be 2 questions based on selected language

And questions on general English.

Q1. Technical round will based on mentioned language in resume. My round was on Java language. So prepare the basic of Java and advance Java some time they ask you to write some syntax so prepare those synta...read more
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Q1. It's formality round Just present your self well Be ready to reallocate any where they want. You can ask some question about the work culture in company.
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Data Structure related questions

Q1. Java related interview questions
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