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posted on 17 Oct 2024
I applied via Walk-in
To implement a queue using a stack, use two stacks and simulate the queue operations.
Use two stacks, one for enqueue operation and one for dequeue operation.
For enqueue operation, simply push elements onto the stack used for enqueueing.
For dequeue operation, if the dequeue stack is empty, pop all elements from enqueue stack and push onto dequeue stack.
Then pop from the dequeue stack to simulate dequeue operation.
A linked list is a data structure consisting of nodes where each node points to the next node in the sequence.
Create a Node class with data and next pointer
Initialize a head pointer to null
Add nodes by updating next pointers
Traverse the list by following next pointers
I applied via Google and was interviewed in Aug 2023. There were 3 interview rounds.
Coding questions about array and string.
Cosing questions about sql and ds.
I applied via Campus Placement and was interviewed in Nov 2024. There was 1 interview round.
Easy to medium leetcode questions
I applied via Campus Placement and was interviewed in Dec 2024. There was 1 interview round.
2 questions of DSA medium to hard
I applied via Recruitment Consulltant and was interviewed before Sep 2023. There were 3 interview rounds.
Basic coding questions
I applied via Campus Placement and was interviewed before Oct 2022. There were 4 interview rounds.
Basic Aptitude questions were there which I think anyone can clear.
2 easy level programming questions were asked.
I applied via Naukri.com and was interviewed in Nov 2023. There were 2 interview rounds.
Coding test consists of easy to medium difficulty problems.
HashMap in Java is a data structure that stores key-value pairs and allows for fast retrieval of values based on keys.
HashMap is part of the Java Collections framework.
It uses hashing to store key-value pairs, allowing for O(1) retrieval time on average.
Keys in a HashMap must be unique, but values can be duplicated.
Example: HashMap
I applied via Approached by Company and was interviewed in Jan 2024. There were 3 interview rounds.
It was mostly on JavaScript
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