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I applied via Approached by Company and was interviewed before May 2023. There were 2 interview rounds.
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I was interviewed in Dec 2017.
To find the maximum water pond formed between buildings.
Identify the lowest point between the buildings.
Calculate the area of the pond using the distance between the buildings and the depth of the pond.
Consider any obstacles or uneven ground that may affect the pond's shape.
Use a surveying tool or satellite imagery to get accurate measurements.
Take into account any drainage systems or natural water flow that may affect
Design a dictionary using trie with insert, update and delete operations.
Implement a Trie data structure with nodes containing a character and a boolean flag to indicate end of word
For insert operation, traverse the trie and add nodes for each character in the word
For update operation, delete the existing word and insert the updated word
For delete operation, mark the end of word flag as false and delete the node if it ...
Find the odd repeating element from an array of strings
Use a hash table to count the frequency of each element
Iterate through the hash table to find the element with an odd count
Finding an element in a sorted 2D matrix
Start from the top right corner or bottom left corner
Compare the target element with the current element
Move left or down if the target is smaller, else move right or up
Repeat until the target is found or all elements are checked
SQL query to find Nth highest salary from table
Use ORDER BY and LIMIT clauses
Use subquery to get the Nth highest salary
Handle cases where there are less than N distinct salaries
Function to swap '3' and '4' without using if-else
Use XOR operator to swap the values
Convert the input to ASCII code and perform the swap
Use a lookup table to map the values
I am a software developer with experience in Java and Python.
Proficient in Java and Python programming languages
Experience in developing web applications using Spring framework
Familiarity with database management systems like MySQL and MongoDB
PAYTM is a leading digital payment platform in India with a wide range of services.
PAYTM has a user-friendly interface and offers a seamless payment experience.
It provides a variety of services like mobile recharges, bill payments, and online shopping.
PAYTM has a strong focus on security and fraud prevention measures.
It has a large user base and is widely accepted by merchants across India.
PAYTM is constantly innovatin...
Yes, I am open to pursuing further studies in the future.
I believe in continuous learning and staying updated with the latest technologies.
Further studies can help me specialize in a particular field and enhance my skills.
I may consider pursuing a master's degree in computer science or a related field.
However, my immediate focus is on gaining practical experience and contributing to the organization.
PAYTM grew fast due to its innovative approach and early adoption of digital payments.
Early adoption of digital payments in India
Innovative approach with features like mobile recharges, bill payments, and cashback offers
Expansion into e-commerce and financial services
Strategic partnerships with major companies like Uber and Alibaba
I was interviewed before Mar 2021.
Round duration - 90 Minutes
Round difficulty - Medium
Determine if a given singly linked list of integers forms a cycle or not.
A cycle in a linked list occurs when a node's next
points back to a previous node in the ...
Detect if a singly linked list forms a cycle by checking if a node's next points back to a previous node.
Use Floyd's Cycle Detection Algorithm to determine if there is a cycle in the linked list.
Maintain two pointers, one moving at double the speed of the other, if they meet at any point, there is a cycle.
If one of the pointers reaches the end of the list (null), there is no cycle.
Given a list of integers of size N
, your task is to determine the Next Greater Element (NGE) for every element. The Next Greater Element for an element X
is the firs...
Find the Next Greater Element for each element in a list of integers.
Iterate through the list of integers from right to left.
Use a stack to keep track of elements for which the Next Greater Element is not yet found.
Pop elements from the stack until a greater element is found or the stack is empty.
Assign the Next Greater Element as the top element of the stack or -1 if the stack is empty.
Round duration - 60 Minutes
Round difficulty - Medium
Designing an ATM machine involves considering user interface, security measures, transaction processing, and hardware components.
User interface should be intuitive and easy to navigate for users of all ages.
Implement security measures such as PIN entry, card authentication, and encryption to protect user data.
Transaction processing should be fast and reliable, with options for cash withdrawals, deposits, transfers, and...
Round duration - 45 Minutes
Round difficulty - Easy
Tip 1 : Practice DSA daily
Tip 2 : Try to think of the solution first before jumping to the solution
Tip 3 : Go through interview experience
Tip 4 : Have mock interviews
Tip 1 : Know in depth what is there in your resume
Tip 2 : Mention your skills and work properly
I was interviewed before Sep 2020.
Round duration - 45 minutes
Round difficulty - Medium
I applied thorough LinkedIn and got a call from HR for the interview.
I went to their Noida Office.
First round was mainly focused on Javascript fundamentals.
Interviewer was also friendly.
Round duration - 1 hour
Round difficulty - Medium
Second round was after 15 minutes of the first round. The focus of this round was DS & Algorithms.
Given an array ARR
of N
integers and an integer S
, determine if there exists a subarray (of positive length) within the given array such that the sum of its elements equals S
....
Given an array and a target sum, find a subarray that sums up to the target sum.
Iterate through the array while keeping track of the running sum and the starting index of the subarray.
Use a hashmap to store the running sum and its corresponding index.
If the running sum - target sum is found in the hashmap, it means a subarray with the target sum exists.
Return the starting and ending indices of the subarray or [-1, -1]
You are provided with two arrays, AT
and DT
, representing the arrival and departure times of all trains arriving at a railway station.
Your task is to determine the m...
This question asks to find the minimum number of platforms required at a railway station so that no train needs to wait.
Sort the arrival and departure times arrays in ascending order.
Initialize a variable 'platforms' to 1 and 'maxPlatforms' to 1.
Iterate through the arrival and departure times arrays simultaneously.
If the current arrival time is less than or equal to the current departure time, increment 'platforms'.
If ...
Round duration - 30 minutes
Round difficulty - Easy
The interviewer asked about JavaScript questions and the work culture of the team during the managerial round.
JavaScript questions related to closures, prototypes, event handling, and asynchronous programming may have been asked.
Work culture may involve collaboration, innovation, agile methodologies, and continuous learning.
Examples of work culture could include regular team meetings, code reviews, hackathons, and ment
Round duration - 15 minutes
Round difficulty - Easy
Tip 1 : Be strong at your basics.
Tip 2 : Don't hesitate to ask questions to interviewer.
Tip 3 : Prepare good for DS & Algo as most companies have a separate round for it.
Tip 1: If possible make 1 page resume
Tip 2: Don't put too many things. Keep it simple. If you're a fresher and have good projects, do put them before your academic section.
Tip 3: Be ready to explain everything you have in your resume.
posted on 15 Sep 2024
OOPS (Object-Oriented Programming) is a programming paradigm based on the concept of objects, which can contain data and code.
OOPS focuses on creating objects that interact with each other to solve problems.
It involves concepts like classes, objects, inheritance, polymorphism, and encapsulation.
For example, a class 'Car' can have objects like 'Toyota', 'Honda', etc., each with their own properties and methods.
Inheritan...
I applied via Naukri.com and was interviewed before Jan 2022. There were 2 interview rounds.
DSA in preferred language, Java coding testt
based on 2 interviews
Interview experience
based on 2 reviews
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