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2 hours coding round, only 1 person out of 90 cleared
I applied via Campus Placement and was interviewed in Aug 2022. There were 3 interview rounds.
Questions from trees and linkedin
Reverse a linked list using multiple approaches.
Iterative approach: Use three pointers to reverse the links between nodes.
Recursive approach: Recursively reverse the rest of the list and adjust the links.
Stack approach: Push all the nodes onto a stack and then pop them to create the reversed list.
LRU Cache is a data structure that stores the most recently used items and discards the least recently used items.
Use a hash table to store key-value pairs
Use a doubly linked list to keep track of the order of items
When an item is accessed, move it to the front of the list
When the cache is full, remove the least recently used item from the back of the list
Lookup and insertion should be O(1) time complexity
Implement 2 stacks in an array
Divide the array into two halves
Use top1 and top2 to keep track of top elements of stacks
Push and pop elements from respective halves
Check for overflow and underflow conditions
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25 basic aptitude asked from train,time and work
2 coding questions which was basic and medium questions
I applied via LinkedIn and was interviewed in Jan 2023. There were 3 interview rounds.
It was 2 coding questions of medium level
Find the longest substring in a given string that does not contain any repeating characters.
Use a sliding window approach to iterate through the string.
Keep track of the characters seen so far using a set.
Update the start and end indices of the window to find the longest substring.
Return the length of the longest substring.
I applied via Campus Placement and was interviewed before Aug 2022. There were 5 interview rounds.
There were 2 questions to test our basic coding knowledge.
Data structures are used in various applications like search algorithms, storage systems, and graph algorithms.
Search algorithms like binary search use arrays and trees for efficient searching.
Storage systems use data structures like hash tables and linked lists for organizing and accessing data.
Graph algorithms like Dijkstra's algorithm use graphs and trees for solving complex problems.
I applied via Recruitment Consulltant and was interviewed in Dec 2022. There were 4 interview rounds.
Medium level array question was asked on hackerrank.
posted on 19 Jun 2024
I applied via Naukri.com and was interviewed in Dec 2023. There was 1 interview round.
posted on 28 Jun 2024
I applied via Approached by Company and was interviewed before Jun 2023. There was 1 interview round.
Normal and simple js dsa question regarding strings and arrays.
posted on 25 Jun 2021
LCM of n numbers in an array
Find the GCD of all numbers in the array
Divide each number by the GCD and multiply them
Use Euclidean algorithm to find GCD
based on 2 interviews
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