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I applied via Approached by Company and was interviewed in Sep 2024. There was 1 interview round.
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I appeared for an interview in Dec 2020.
Round duration - 60 minutes
Round difficulty - Medium
test timing: 7-8 pm
2 programming questions
webcam proctored
You are provided with an array ARR
of integers of size 'N' and an integer 'K'. The goal is to move from the starting index to the end of the array with the minimum possib...
Find minimum cost to reach end of array by jumping with constraints
Use dynamic programming to keep track of minimum cost at each index
Iterate through the array and update the minimum cost based on reachable indices within K steps
Calculate cost to jump from current index to reachable indices and update minimum cost accordingly
Tip 1 : Ability to apply data structures in questions(practice graph and Tree questions)
Tip 2 : Thorough knowledge of the projects done
Tip 3 : Good knowledge about computer science concepts
Tip 1 : Mention projects that you have done yourself and are thorough with
Tip 2 : mention soft skills
I appeared for an interview before Sep 2020.
Round duration - 60 Minutes
Round difficulty - Medium
Determine if a given string 'S' is a palindrome, considering only alphanumeric characters and ignoring spaces and symbols.
The string 'S' should be evaluated in a case...
The task is to check whether a given string is a palindrome or not, considering only alphabets and numbers and ignoring symbols and whitespaces.
Convert the string to lowercase and remove all symbols and whitespaces.
Reverse the modified string and compare it with the original string.
If they are equal, then the string is a palindrome.
If not, then the string is not a palindrome.
Given a number N
, calculate its square root and output the integer part only.
18
4
The square root of 18 is approximate...
The task is to find the integral part of the square root of a given number.
Use the built-in square root function to find the square root of the number.
Convert the result to an integer by rounding down or using the floor function.
Print the integer part of the square root as the output.
Given a positive integer N
, your task is to determine the minimum number of steps required to reduce N
to 1.
1) Subtract 1 from it: n = n -...
The task is to find the minimum number of steps required to reduce a positive integer to 1 using three given operations.
Use dynamic programming to solve the problem efficiently.
Create an array to store the minimum steps required for each number from 1 to N.
Iterate from 2 to N and calculate the minimum steps for each number based on the three operations.
Return the minimum steps for N.
Round duration - 60 Minutes
Round difficulty - Medium
They started Fundamentals of OOP- Inheritance, Polymorphism
Given an array of integers, determine the maximum possible sum of any contiguous subarray within the array.
array = [34, -50, 42, 14, -5, 86]
The maximum sum of any contiguous subarray in an array is found using Kadane's algorithm in O(N) time.
Initialize two variables, maxSum and currentSum, both set to the first element of the array.
Iterate through the array from the second element.
For each element, update currentSum by adding the element to it.
If currentSum becomes negative, reset it to 0.
If currentSum is greater than maxSum, update maxSum.
After iterating ...
Round duration - 30 Minutes
Round difficulty - Medium
Some people had two HR interviews but I only had one and interview went up till 11:30 pm and you get only 5-10 minutes to prepare for HR on Zoom
Tip 1 : Solve atleast 200 problems
Tip 2 : Focus on all data structures
Tip 3 : Build some good projects
Tip 1 : Keep it precise and concise.
Tip 2 : Build your resume yourself according your skills
I applied via Naukri.com and was interviewed in Feb 2020. There was 1 interview round.
I appeared for an interview 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 ...
I applied via Campus Placement and was interviewed in Dec 2016. There were 3 interview rounds.
Find subset of numbers in array that sum up to zero.
Use a nested loop to iterate through all possible subsets.
Calculate the sum of each subset and check if it equals zero.
Store the subset if the sum is zero.
Optimize the solution by using a hash set to store the cumulative sum of elements.
BFS (Breadth-First Search) is a graph traversal algorithm that explores all the vertices of a graph in breadth-first order.
BFS starts at a given vertex and explores all its neighbors before moving to the next level of vertices.
It uses a queue data structure to keep track of the vertices to be visited.
BFS guarantees that it visits all the vertices of a connected graph.
It can be used to find the shortest path between two
In 5 years, I see myself as a highly skilled software developer, leading a team and contributing to innovative projects.
Continuously improving my technical skills through learning and hands-on experience
Taking on leadership roles and mentoring junior developers
Contributing to the development of cutting-edge software solutions
Building strong relationships with clients and stakeholders
Staying updated with the latest indu...
Object Oriented Programming is a programming paradigm that uses objects to represent real-world entities.
Encapsulation: bundling data and methods that operate on that data within one unit
Inheritance: creating new classes from existing ones, inheriting their properties and methods
Polymorphism: ability of objects to take on multiple forms or behaviors
Abstraction: hiding complex implementation details and providing a simp...
Abstraction is hiding implementation details while polymorphism is using a single interface for multiple types.
Abstraction: Encapsulation, Interfaces, Abstract classes
Polymorphism: Method Overloading, Method Overriding, Interfaces
Abstraction Example: Car - we don't need to know how the engine works to drive it
Polymorphism Example: Animal - different animals have different sounds but they all have a 'makeSound' method
PayPal is an online payment system that allows individuals and businesses to transfer funds electronically.
Allows users to make payments and money transfers online
Offers a secure and convenient way to pay for goods and services
Provides a platform for businesses to accept payments online
Offers buyer and seller protection for eligible transactions
Can be used to send and receive money internationally
I am excited to join PayPal because of its innovative culture and impact on the global economy.
PayPal's commitment to innovation aligns with my passion for staying up-to-date with the latest technologies.
I am impressed by PayPal's global reach and impact on the economy, and I want to be a part of that.
I appreciate PayPal's focus on diversity and inclusion, and I believe in the importance of working for a company with s...
I applied via Campus Placement
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
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