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I applied via Campus Placement and was interviewed in Sep 2023. There were 5 interview rounds.
3 tough coding questions but 1 day to complete them
The median of two sorted arrays can be found by merging the arrays and then calculating the median.
Merge the two sorted arrays into a single sorted array
Calculate the median of the merged array
Handle cases where the total number of elements is even or odd
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I applied via LinkedIn and was interviewed before Apr 2021. There was 1 interview round.
I applied via Internshala and was interviewed before Sep 2021. There were 2 interview rounds.
I applied via Recruitment Consultant and was interviewed in May 2020. There were 3 interview rounds.
Diameter of a binary tree is the longest path between any two leaf nodes.
Calculate the height of left and right subtrees recursively.
Calculate the diameter recursively using the formula max(left_height + right_height + 1, max(left_diameter, right_diameter)).
Return the maximum diameter.
To find interchanged terms from an AP series
Identify the common difference between terms
Swap the positions of adjacent terms
Check if the new series is also an AP
Repeat until no more interchanged terms can be found
Database indexing is a technique to improve the performance of database queries.
Indexing creates a data structure that allows for faster retrieval of data.
Indexes are created on one or more columns of a table.
Queries that use indexed columns can be executed faster.
Indexes can be clustered or non-clustered.
Clustered indexes determine the physical order of data in a table.
Non-clustered indexes create a separate structure...
I applied via Campus Placement and was interviewed before Dec 2020. There were 4 interview rounds.
Design a stack that supports getmin in O(1) time and O(1) space complexities.
Use two stacks, one for storing the actual values and the other for storing the minimum values.
When pushing a new value, check if it is smaller than the current minimum value and push it to the minimum stack if it is.
When popping a value, check if it is the current minimum value and pop it from the minimum stack if it is.
To get the minimum val...
Binary tree traversal is the process of visiting each node in a binary tree exactly once in a specific order.
There are three main types of binary tree traversal: inorder, preorder, and postorder.
Inorder traversal visits the left subtree, then the root, then the right subtree.
Preorder traversal visits the root, then the left subtree, then the right subtree.
Postorder traversal visits the left subtree, then the right subt...
LRU cache is a data structure that stores the most recently used items and discards the least recently used items.
LRU stands for Least Recently Used
It has a fixed size and when the cache is full, the least recently used item is removed to make space for a new item
It uses a combination of a doubly linked list and a hash map to achieve O(1) time complexity for both insertion and deletion
Example: A web browser cache that ...
Standard dsa questions, easy to medium
I applied via Approached by Company and was interviewed before Feb 2023. There was 1 interview round.
posted on 24 Oct 2024
Count the number of islands in a given grid of '1's and '0's.
Iterate through the grid and for each '1' encountered, perform a depth-first search to mark all connected '1's as visited.
Increment the island count for each new island encountered.
Consider edge cases like grid boundaries and handling visited cells.
posted on 23 Aug 2024
My name is John Smith.
Full name is John Smith
Common name in English-speaking countries
No middle name or initial
In my free time, I enjoy hiking, playing video games, and learning new programming languages.
Hiking in local trails and national parks
Playing video games like Overwatch and Minecraft
Learning new programming languages like Python and JavaScript
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