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I applied via Referral and was interviewed in Aug 2021. There were 3 interview rounds.
Different types of testing include functional testing, performance testing, security testing, and usability testing.
Functional testing: Testing the functionality of the software to ensure it meets the requirements.
Performance testing: Testing the performance and scalability of the software under different loads and conditions.
Security testing: Testing the software for vulnerabilities and ensuring data protection.
Usabil...
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I applied via Referral and was interviewed before Mar 2023. There was 1 interview round.
Basic coding test from hackerearth.
I applied via Referral and was interviewed before Mar 2023. There was 1 interview round.
The Dutch Flag problem involves sorting an array of strings with three possible values in a specific order.
Create three pointers to keep track of the boundaries of each color group
Iterate through the array and swap elements to group them in the correct order
Time complexity of O(n) can be achieved by a single pass through the array
I applied via Recruitment Consulltant and was interviewed before Mar 2022. There were 5 interview rounds.
Mettle Test based on DP based approach
Design a distributed queue similar to Kafka.
Use a distributed architecture with multiple brokers and partitions.
Implement a publish-subscribe model for producers and consumers.
Ensure fault tolerance and high availability through replication and leader election.
Use a log-based storage system for messages and offsets.
Provide support for message ordering and retention policies.
Implement a scalable and efficient message de...
Design a Price Tagger System
Identify the products to be tagged with prices
Determine the pricing strategy (e.g. cost-plus, value-based, etc.)
Choose the appropriate tagging technology (e.g. barcode, RFID, etc.)
Develop a user-friendly interface for tagging and updating prices
Implement a database to store product and pricing information
Integrate with point-of-sale systems for accurate pricing at checkout
I applied via Approached by Company and was interviewed in Jun 2024. There were 3 interview rounds.
A palindrome is a word, phrase, number, or other sequence of characters that reads the same forward and backward.
Use dynamic programming to solve this problem efficiently.
Iterate through the string and expand around each character to find the longest palindrome.
Consider both odd and even length palindromes.
Example: Input 'babad', Output 'aba' or 'bab'.
Generate all possible subsequences of a given string.
Use recursion to generate all possible combinations of characters in the string.
At each step, include or exclude the current character to form subsequences.
Store each subsequence in an array of strings.
Find and print the longest substring with k unique characters in an array of strings.
Iterate through the array of strings and keep track of the longest substring with k unique characters.
Use a sliding window approach to efficiently find the longest substring.
Keep a hashmap to store the frequency of characters in the current window.
Update the window boundaries based on the number of unique characters.
Return the longest
I applied via Approached by Company and was interviewed in Mar 2024. There was 1 interview round.
The rain water problem involves calculating the amount of rainwater that can be trapped between buildings or structures.
Calculate the maximum height of water that can be trapped at each position
Subtract the height of the building at each position to get the water level
Sum up the water levels at each position to get the total amount of trapped rainwater
Designing search systems involves creating efficient algorithms and data structures to quickly retrieve relevant information.
Understand the data structure of the search system (e.g. inverted index, trie)
Implement efficient search algorithms (e.g. binary search, hash tables)
Consider scalability and performance optimization techniques (e.g. caching, indexing)
Include user-friendly features like autocomplete and spell corr...
The written test consisted of two DS programs.
I applied via LinkedIn and was interviewed before Oct 2023. There were 2 interview rounds.
1 hour in testing problem solving and basic math
Coding round with graph and tree questions
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