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I applied via LinkedIn and was interviewed in Apr 2024. There were 3 interview rounds.
Technical round- Hackerank Problem
I applied via Referral and was interviewed in Jun 2024. There were 2 interview rounds.
Two medium level question in 75 minutes
Return k most frequent strings from an array of strings
Use a hashmap to store the frequency of each string in the array
Sort the hashmap by frequency in descending order
Return the first k keys from the sorted hashmap
Java is a popular programming language used for developing various applications. Concurrency errors occur when multiple threads access shared resources simultaneously.
Java is a high-level, object-oriented programming language known for its platform independence.
Concurrency errors in Java can be solved using synchronization mechanisms like synchronized blocks, locks, and atomic variables.
Examples of solving concurrency ...
A null pointer exception occurs when a program tries to access a memory address that is null or invalid.
Occurs in programming languages like Java when trying to access an object or variable that is null
Can be caused by not properly initializing a variable before using it
Example: int[] arr = null; int x = arr.length; // This will throw a null pointer exception
Medium leet code data structures and algorithms
Apache Cassandra is a persistent in-memory key-value store optimized for write-heavy workloads using SSTables and compaction.
Apache Cassandra is a popular choice for write-heavy workloads due to its distributed architecture and support for SSTables.
SSTables (Sorted String Tables) are used to store data on disk in a sorted manner, allowing for efficient read and write operations.
Compaction in Apache Cassandra helps to m...
Salesforce interview questions for designations
I applied via Referral and was interviewed in Jan 2024. There were 2 interview rounds.
2 DSA questions were asked. they were of easy-medium difficulty.
I applied via Referral and was interviewed in May 2024. There was 1 interview round.
Developed a web-based project management tool for tracking tasks and deadlines.
Used AngularJS for front-end development
Implemented RESTful APIs for backend using Node.js
Utilized MongoDB for database storage
I applied via LinkedIn and was interviewed in Nov 2023. There were 6 interview rounds.
Round 1 was hackerrank test which had 2 questions.
Round 2 was onsite code pair round where in we have to solve 2 questions on dsa
This was similar to 2nd round
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I applied via Company Website and was interviewed before Dec 2020. There were 4 interview rounds.
I applied via Newspaper Ad and was interviewed before Jun 2021. There were 3 interview rounds.
To determine if a point is inside a polygon, use the ray casting algorithm.
Create a line from the point to a point outside the polygon
Count the number of times the line intersects with the polygon edges
If the count is odd, the point is inside the polygon; otherwise, it is outside
The four storage classes in C are auto, register, static, and extern.
Auto: default storage class for all local variables
Register: used to define local variables that should be stored in a register instead of RAM
Static: used to define local variables that retain their value between function calls
Extern: used to declare a global variable that is defined in another file
i is stored in global data segment, j is stored in stack, k is stored in heap.
i is a global variable and is stored in the global data segment
j is a local variable and is stored in the stack
k is a pointer variable and is stored in the stack, while the memory it points to is allocated on the heap using malloc()
Use a hash table to store the words and check for existence in constant time.
Create a hash table with the words as keys and a boolean value as the value.
For each new word, check if it exists in the hash table. If it does, it has appeared before. If not, add it to the hash table.
Alternatively, use a set data structure to store only the unique words and check for existence in the set.
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