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I applied via Approached by Company and was interviewed in May 2023. There were 2 interview rounds.
SQL query to join tables
Use the JOIN keyword to combine rows from two or more tables based on a related column between them
Specify the columns to be selected from each table
Use ON clause to specify the join condition
I applied via LinkedIn and was interviewed before May 2023. There was 1 interview round.
I was interviewed in Jan 2021.
Round duration - 75 Minutes
Round difficulty - Medium
This round was with SDE-1
After my introduction , he asked me 3 Questions
You are given a binary tree with 'N' integer nodes. Your task is to determine whether this binary tree is a Binary Search Tree (BST).
A Binary Search Tr...
Validate if a given binary tree is a Binary Search Tree (BST) or not.
Check if the left subtree of a node contains only nodes with data less than the node's data.
Check if the right subtree of a node contains only nodes with data greater than the node's data.
Recursively check if both the left and right subtrees are also binary search trees.
Example: For each node, validate if its left child is less than the node and right
You are provided with a string S
of length N
, consisting of lowercase English alphabet letters, and a positive integer K
.
Your task is to determine the maximu...
Find the longest substring with at most K distinct characters in a given string.
Use a sliding window approach to keep track of the characters and their counts in the substring.
Maintain a hashmap to store the characters and their frequencies.
Update the window size and characters count as you iterate through the string.
Return the maximum length of the substring with at most K distinct characters.
You are provided with an undirected graph containing 'N' vertices and 'M' edges. The vertices are numbered from 1 to 'N'. Your objective is to determi...
Detect if an undirected graph contains a cycle.
Use depth-first search (DFS) to detect cycles in the graph.
Maintain a visited array to keep track of visited vertices.
If a visited vertex is encountered again during DFS, a cycle exists.
Consider disconnected graphs as well.
Example: For input N=3, Edges=[[1, 2], [2, 3], [1, 3]], output is Yes.
Round duration - 90 Miinutes
Round difficulty - Medium
This round was with a Senior Data Engineer as this position was a mix of Backend and Big Data.
As the Government ramps up vaccination drives to combat the second wave of Covid-19, you are tasked with helping plan an effective vaccination schedule. Your goal is...
Given constraints and rules, find maximum vaccines administered on a specific day during a vaccination drive.
Iterate through each test case and calculate the maximum number of vaccines distributed on the specified day.
Distribute vaccines evenly across days while maximizing the number on the specified day.
Ensure that the sum of vaccines administered does not exceed the maximum allowed.
Consider edge cases like when the n...
Given an array of distinct positive integers ARR
and a non-negative integer 'B', find all unique combinations in the array where the sum is equal to 'B'. Numbers can be c...
Find all unique combinations in an array where the sum is equal to a given target sum, with elements in non-decreasing order.
Use backtracking to generate all possible combinations of elements in the array that sum up to the target sum.
Sort the array to ensure elements in each combination are in non-decreasing order.
Handle duplicate elements in the array to avoid duplicate combinations.
Consider edge cases like empty arr...
Round duration - 75 Minutes
Round difficulty - Easy
This round was taken by Engineering Manager
There were 2 sections to this round
Technical and Non Techincal
You are given an array/list of integers with length 'N'. A sliding window of size 'K' moves from the start to the end of the array. For each of the 'N'-'K'+1 possi...
Sliding window maximum problem where we find maximum element in each window of size K.
Use a deque to store indices of elements in decreasing order within the window.
Pop elements from the deque that are out of the current window.
Append the maximum element from the front of the deque to the result for each window.
Tip 1 : Be solid with the basics of Ds, Algo. Good to have end to end projects which are hosted on cloud.
Tip 2 : Its always good to be presentable and have good communications skills
Tip 3 : Be honest, clear in approach and always walkthrough your thought process to the interviewer
Tip 1 : Mention your projects and experience at the top. Be clear on what was done, a brief on how it was done, language /tech stack involved. If possible try to host and make it accessible. You never know if you can present it with just one click.
Tip 2 : Choose a balance between, white spaces and text, it should be well indented, no grammatical errors.
Tip 3 : It takes less than 2 min to scan a resume. Don't mention things which are irrelevant.
Top trending discussions
posted on 24 Mar 2015
I applied via Freshesworld and was interviewed in Nov 2020. There were 6 interview rounds.
I applied via Walk-in and was interviewed before Feb 2020. There were 4 interview rounds.
I applied via Campus Placement and was interviewed in Oct 2020. There were 4 interview rounds.
I applied via Campus Placement and was interviewed before Apr 2020. There were 4 interview rounds.
I applied via Referral and was interviewed before Apr 2020. There were 5 interview rounds.
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