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INCREFF Interview Questions and Answers
6 Interview questions
Maximize product collection in a grid by moving right or down from top left to bottom right.
Use dynamic programming to store maximum products collected at each cell.
Initialize a 2D array 'dp' where dp[i][j] represents max products at cell (i, j).
Base case: dp[0][0] = grid[0][0].
For each cell, calculate dp[i][j] = grid[i][j] + max(dp[i-1][j], dp[i][j-1]).
Return dp[m-1][n-1] where m and n are grid dimensions.
Use a big integer library to calculate factorial of large numbers like 100.
Use a big integer library like BigInteger in Java or BigInt in Python.
Implement a function to calculate factorial recursively or iteratively.
Handle large numbers by storing them in arrays or strings.
Design a Ludo game with basic functionalities like player movement, dice rolling, and win condition checks.
Players: 2-4 players can participate in the game.
Board: A square board with a cross-shaped path for each player.
Dice: A single die to determine the number of spaces a player moves.
Movement: Players move their tokens based on the dice roll, starting from the base.
Winning: The first player to get all their toke...
Group anagrams from a list of strings by sorting or using a frequency count.
Anagrams are words that can be rearranged to form each other, e.g., 'eat' and 'tea'.
Use a hashmap to group words by their sorted character string.
Example: Input: ['eat', 'tea', 'tan', 'ate', 'nat', 'bat'] Output: [['eat', 'tea', 'ate'], ['tan', 'nat'], ['bat']].
Alternatively, use a frequency count of characters to identify anagrams.
RAM is volatile memory for temporary storage, HDD is non-volatile storage for long-term data, and SSD is a faster non-volatile storage.
RAM is volatile memory that stores data temporarily while the computer is on.
HDD is a non-volatile storage device that uses spinning disks to store data long-term.
SSD is a faster non-volatile storage device that uses flash memory for quicker access to data.
RAM is faster but more ex...
In-memory databases store data in main memory for faster access and retrieval.
Use data structures like hash tables or B-trees for efficient storage and retrieval of data
Implement caching mechanisms to reduce latency and improve performance
Consider data persistence strategies like periodic snapshots or write-ahead logging
Optimize memory usage by compressing data or using columnar storage formats
INCREFF Interview Experiences
26 interviews found
032 Ujjwal
Selected
I applied via Campus Placement and was interviewed before Jul 2023. There were 4 interview rounds.
45 questions time - 30min
2 Medium Leetcode questions
(2 Questions)
- Q1. Print Factorial of large numbers(like 100)
- Ans.
Use a big integer library to calculate factorial of large numbers like 100.
Use a big integer library like BigInteger in Java or BigInt in Python.
Implement a function to calculate factorial recursively or iteratively.
Handle large numbers by storing them in arrays or strings.
- Q2. Group Anagrams(leetcode medium)
- Ans.
Group anagrams from a list of strings by sorting or using a frequency count.
Anagrams are words that can be rearranged to form each other, e.g., 'eat' and 'tea'.
Use a hashmap to group words by their sorted character string.
Example: Input: ['eat', 'tea', 'tan', 'ate', 'nat', 'bat'] Output: [['eat', 'tea', 'ate'], ['tan', 'nat'], ['bat']].
Alternatively, use a frequency count of characters to identify anagrams.
(1 Question)
- Q1. Design Ludo game and code with basics functionailty(test cases)
- Ans.
Design a Ludo game with basic functionalities like player movement, dice rolling, and win condition checks.
Players: 2-4 players can participate in the game.
Board: A square board with a cross-shaped path for each player.
Dice: A single die to determine the number of spaces a player moves.
Movement: Players move their tokens based on the dice roll, starting from the base.
Winning: The first player to get all their tokens to...
Skills evaluated in this interview
Anonymous
I applied via Approached by Company and was interviewed in Aug 2024. There were 3 interview rounds.
There were mcq related to Html, css ,js and data structures. along with 3 questions out of which 2 were data structures problems and 1 related to call api.
(2 Questions)
- Q1. Event loop, Javascript output based, closures, diff btw var let const, indexDb, and many more basic javascript concepts
- Q2. 2 Dsa problems - 1 was related to stack , maximum product subarray
(1 Question)
- Q1. Generic js coding questions. checking the thought process
Interview Preparation Tips
- Javascript
It was a computer based aptitude test
(2 Questions)
- Q1. Guesstimates were asked in this round
- Q2. Puzzles were asked in this round as well
(2 Questions)
- Q1. Case study was given
- Q2. Daily sales of a top retail brand
- Ans.
Analyzing daily sales data of a top retail brand to identify trends and patterns.
Collect daily sales data from the top retail brand
Analyze the data to identify trends and patterns in sales
Use data visualization tools to present findings to stakeholders
I applied via Campus Placement and was interviewed in Aug 2024. There were 2 interview rounds.
Included questions on mathematical reasoning, OS, DBMS and two coding questions
(2 Questions)
- Q1. Differences between RAM, HDD and SSD.
- Ans.
RAM is volatile memory for temporary storage, HDD is non-volatile storage for long-term data, and SSD is a faster non-volatile storage.
RAM is volatile memory that stores data temporarily while the computer is on.
HDD is a non-volatile storage device that uses spinning disks to store data long-term.
SSD is a faster non-volatile storage device that uses flash memory for quicker access to data.
RAM is faster but more expensi...
- Q2. Given a grid with multiple products and starting from top left, how to reach bottom right collecting max number of products, and moving only right or down.
Skills evaluated in this interview
Selected
2 rounds of aptitude tests focussing on your logical reasoning and EQ
(2 Questions)
- Q1. Tell us something about yourself.
- Q2. What do you know about us?
(3 Questions)
- Q1. Tell us something about yourself.
- Q2. What do you know about us?
- Q3. Why do you want to work with Increff?
(2 Questions)
- Q1. Aptitude related questions asked.
- Q2. Situation based interview asked.
(4 Questions)
- Q1. Tell us something about yourself?
- Q2. Why do you want to work in this dept and industry
- Q3. What is your vision 5 years down the line.
- Q4. Some aptitude and reasoning questions.
It was a great round with medium - hard level leetcode questions from graph and binary search.
(2 Questions)
- Q1. N Queens problem standard
- Q2. Some probability related question
Interview Preparation Tips
Tip 2: Look over the previous questions asked
Skills evaluated in this interview
(1 Question)
- Q1. DSA Questions on ant topic
Graph, DP questions of hard level
Selected
I applied via Referral and was interviewed in Oct 2024. There were 2 interview rounds.
The test is moderate
Case study of vending machine
Interview Preparation Tips
I applied via Job Portal and was interviewed in Apr 2024. There were 3 interview rounds.
Contained aptitude questions followed by two coding questions.
Contained Two coding questions
Contained project to find bugs
(1 Question)
- Q1. Live Negotiation Question
Aptitude test on theory topics and general aptitude
(1 Question)
- Q1. Binary search question
(1 Question)
- Q1. Design in memory database
- Ans.
In-memory databases store data in main memory for faster access and retrieval.
Use data structures like hash tables or B-trees for efficient storage and retrieval of data
Implement caching mechanisms to reduce latency and improve performance
Consider data persistence strategies like periodic snapshots or write-ahead logging
Optimize memory usage by compressing data or using columnar storage formats
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INCREFF Interview FAQs
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