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I applied via Campus Placement and was interviewed in Jun 2024. There were 2 interview rounds.
It was of 3 hours including coding questions as well as computer science fundamentals
Find subsets with sum K from array with duplicates
Use backtracking to generate all possible subsets
Keep track of the sum of each subset as you generate them
Check if the sum of a subset is equal to K and add it to the result
Mostly focus in leetcode easy, medium questions.
Vertical order traversal of tree is a method to traverse a binary tree in a vertical order.
Use a map to store the nodes at each vertical level
Perform a level order traversal of the tree and keep track of the horizontal distance of each node from the root
Store nodes at each horizontal distance in the map and then print the nodes in each vertical level
They mostly asked leetcode easy, medium level.
RapiPay interview questions for designations
Two general Questions about the DSA.
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 ...
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 applied via Naukri.com and was interviewed in Mar 2021. There was 1 interview round.
Program to create a spiral array using 2D-array
Create a 2D-array with given dimensions
Initialize variables for row, column, and direction
Fill the array in a spiral pattern by changing direction when necessary
Return the spiral array
based on 5 interviews
2 Interview rounds
based on 11 reviews
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