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Vector is a dynamic array that can resize itself. It differs from arrays in its ability to change size during runtime.
Vectors are implemented as dynamic arrays, whereas arrays are static.
Vectors can resize themselves during runtime, whereas arrays have a fixed size.
Vectors can be used to store objects of any type, whereas arrays can only store objects of a specific type.
Vectors have built-in functions for easy manipula
An abstract class is a class that cannot be instantiated and is used as a base class for other classes.
An abstract class can have abstract and non-abstract methods.
Abstract methods are declared but not implemented in the abstract class.
A non-abstract class that inherits from an abstract class must implement all abstract methods.
An abstract class can have constructors and fields like a regular class.
An abstract class ca...
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I applied via Referral and was interviewed in Sep 2023. There were 4 interview rounds.
Technical SQL Coding Round of 1 hour
Began with 2 easy generic question -
1. No. of record on different types of joins.
2. Employees who have higher salaries than their managers,
Then moved to medium questions -
1. Implement Rolling sum with & without window functions.
2. Other questions were on CTEs, Joins & other complex queries.
Bar Raiser Round of 1 hour involving -
1. Case study: How can we leverage product knowledge & analytics to increase Amazon Prime Revenue from 10% to 12%?
2. Metrics awareness: Common metrics discussion like DAU, PDAU, MAU, Retention, Churn, etc.
3. Resume based work exp discussion
I applied via LinkedIn and was interviewed in Apr 2023. There were 3 interview rounds.
Use Depth First Search (DFS) to find connected components in a graph
Start by initializing all vertices as unvisited
Iterate through each vertex and perform DFS to find connected components
Keep track of visited vertices to avoid revisiting
Example: For a graph with vertices {A, B, C} and edges {(A, B), (B, C)}, the connected components are {A, B, C}
Design a chess game with proper board setup, piece movements, and win conditions.
Create a 8x8 grid to represent the chess board
Assign initial positions to each type of chess piece (pawn, rook, knight, bishop, queen, king)
Implement rules for each piece's movement (e.g. pawn moves forward, rook moves horizontally/vertically)
Check for valid moves and capture opponent's pieces
Implement win conditions (checkmate, stalemate)
...
I applied via Approached by Company and was interviewed in Aug 2022. There were 2 interview rounds.
Edge score of nodes in a directed graph
Edge score is a measure of the importance of a node in a graph
It is calculated by counting the number of edges that point to or from a node
Nodes with higher edge scores are considered more important
Edge score can be calculated using algorithms like PageRank or HITS
Simulate rotting of oranges in a 2D matrix every second.
Create a queue to store the coordinates of fresh oranges
Iterate through the matrix and add the coordinates of fresh oranges to the queue
Simulate the rotting process by iterating through the queue and rotting adjacent fresh oranges
Keep track of the time taken for all oranges to rot
Return -1 if there are any fresh oranges left after the simulation
DB design for air ticket booking system
Create tables for flights, passengers, bookings, and payments
Use foreign keys to establish relationships between tables
Include fields for flight details, passenger information, and payment details
Consider implementing a caching mechanism for frequently accessed data
Find the next greater element in an array for each element
Iterate through the array and for each element, find the next greater element
Use a stack to keep track of elements whose next greater element is not yet found
If the current element is greater than the top element of the stack, pop the stack and mark the popped element's next greater element as the current element
Push the current element onto the stack
If there ar...
I applied via Approached by Company and was interviewed in Jul 2024. There were 2 interview rounds.
Case studies about Navi UPI
Case studies about Navi UPI App
Easy Medium questions
I was interviewed in May 2022.
Round duration - 75 Minutes
Round difficulty - Medium
The round consisted of 2 Coding based based questions.
These question were easy for as I have already done this while preparing.
Determine whether two binary trees, given by their roots 'ROOT1' and 'ROOT2', are flip equivalent. A tree can be transformed into a flip equivalent through any number o...
The problem is to determine if two binary trees are flip equivalent after performing flip operations on one of the trees.
Perform a depth-first search (DFS) on both trees simultaneously
At each node, check if the values are equal and the left and right subtrees are either both null or both not null
If the above conditions are met, recursively check the flip equivalence of the left and right subtrees
If any of the condition...
You are provided with an integer array ARR
of size N
sorted in ascending order. Your task is to determine if it is possible to split this array i...
The task is to determine if an integer array can be split into one or more increasing subsequences with a length of at least 3.
Check if the array can be split into increasing subsequences by iterating through the array.
Keep track of the current subsequence and its length while iterating.
If the difference between the current element and the previous element is not 1, start a new subsequence.
If the length of any subseque...
Round duration - 60 Minutes
Round difficulty - Easy
The interview started a bit late as I it to be at 11:30 am but started at 12:15pm So Had to wait. Apart from these the overall experience was great and the interviewer was also kind and had a smiling face.
Ninja is given a sequence of numbers and needs to rearrange them so that every second element is greater than its neighbors on both sides.
The task is to rearrange the given array such that every second element is greater than its left and right element.
Iterate through the array and check if every second element is greater than its left and right element
If not, swap the current element with its adjacent element to satisfy the condition
Continue this process until the entire array satisfies the condition
Return 1 if the array satisfies the condition, else re
Round duration - 30 Minutes
Round difficulty - Easy
10:30 PM
Interviewer was Cool.
Round duration - 5 minutes
Round difficulty - Easy
At 10:00 am
Tip 1 : Never never try to cheat in online interview the interviewer will definitely get to know.
Tip 2 : Psuedo code presentation matters a lot so name Your variable properly and with proper indentation.
Tip 3 : Keep on trying even if You feel that's not the right answer so at least put that idea forward.
Tip 4 : Do Leetcode medium questions as much as possible As they are mostly asked in Interviews.
Tip 1 : Avoid unnecessary details on Resume
Tip 2 : Make It look clean and also keep it of one page
I applied via Internshala and was interviewed before Mar 2022. There were 3 interview rounds.
Yes
Conduct regular employee surveys to gather feedback and identify areas for improvement
Implement a recognition and rewards program to acknowledge and appreciate employee contributions
Provide opportunities for professional development and growth through training programs and workshops
Promote open communication and transparency within the organization
Organize team-building activities and events to foster a sense of cam...
I am proficient in using various designing tools such as Adobe Photoshop, Illustrator, and Sketch.
Proficient in Adobe Photoshop, Illustrator, and Sketch
Experience in creating visually appealing designs
Knowledge of design principles and best practices
Ability to work with different file formats and export options
Intranet is a private network for internal communication within an organization, while a website is a public platform accessible to anyone with an internet connection.
Intranet is accessible only within an organization, while a website is accessible to anyone with an internet connection.
Intranet is used for internal communication, sharing of information and resources within an organization, while a website is used for p...
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