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I applied via Company Website and was interviewed in Mar 2022. There were 2 interview rounds.
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I appeared for an interview before Mar 2021.
Round duration - 75 minutes
Round difficulty - Medium
This was an online coding round where we had 2 questions to solve under 75 minutes. I found both the questions to be of Easy to Medium level of difficulty.
You are given several sets of points on a 2D plane, each set represented as a list of coordinates. Your task is to determine if there exists a line parallel to the Y-axis...
The task is to determine if there exists a line parallel to the Y-axis that reflects given points symmetrically.
Iterate through each test case and check if a vertical reflection line exists for the given points
Calculate the midpoint of the x-coordinates and check if it reflects the points symmetrically
Consider edge cases where points are on the reflection line or have the same x-coordinate
You are provided with a 2-dimensional matrix having N
rows and M
columns, containing only 1s (land) and 0s (water). Your goal is to determine the number of islands in t...
Count the number of islands in a 2D matrix of 1s and 0s.
Iterate through the matrix and perform depth-first search (DFS) to find connected 1s.
Mark visited cells to avoid redundant traversal.
Increment island count whenever a new island is encountered.
Round duration - 60 minutes
Round difficulty - Medium
This round had 2 coding questions followed by some questions from DBMS.
You are given an array/list HEIGHTS
of length N
, where each element represents the height of a histogram bar. The width of each bar is considered to be 1.
Find the area of the largest rectangle that can be formed within the bounds of a given histogram.
Iterate through the histogram bars and calculate the area of the largest rectangle that can be formed using each bar as the height.
Use a stack to keep track of the indices of the bars in non-decreasing order of height.
Pop elements from the stack and calculate the area until a smaller height bar is encountered.
Update the max...
Given a string 'STR' consisting solely of the characters “{”, “}”, “(”, “)”, “[” and “]”, determine if the parentheses are balanced.
The first line contains an...
The task is to determine if a given string consisting of parentheses is balanced or not.
Iterate through the characters of the string and use a stack to keep track of opening parentheses.
If an opening parenthesis is encountered, push it onto the stack.
If a closing parenthesis is encountered, check if it matches the top of the stack. If it does, pop the stack, else the string is not balanced.
At the end, if the stack is e...
ACID properties in DBMS ensure data integrity and consistency in transactions.
Atomicity: All operations in a transaction are completed successfully or none at all.
Consistency: Data is always in a valid state before and after a transaction.
Isolation: Transactions are isolated from each other to prevent interference.
Durability: Once a transaction is committed, changes are permanent and survive system failures.
Example: If...
Levels of data abstraction in a DBMS refer to the different views of data provided to users and applications.
Physical level: Deals with how data is stored on the storage media. Example: data blocks, pages, indexes.
Logical level: Focuses on how data is represented to users. Example: tables, views, constraints.
View level: Provides a customized view of the database for specific users or applications. Example: queries, rep
Round duration - 60 minutes
Round difficulty - Medium
Standard DS/Algo round with 2 coding questions followed by 2 interesting puzzles.
You are provided with an undirected graph containing 'N' vertices and 'M' edges. The vertices are numbered from 1 to 'N'. Your objective is to determi...
Detect if an undirected graph contains a cycle by exploring all possible paths.
Use Depth First Search (DFS) algorithm to traverse the graph and detect cycles.
Maintain a visited set to keep track of visited vertices and a parent pointer to avoid visiting the same vertex twice.
If a visited vertex is encountered that is not the parent of the current vertex, a cycle is present.
Consider edge cases like disconnected graphs a
Given a matrix ARR
with dimensions N
* M
, consisting only of 0s and 1s where each row is sorted, determine the index of the row that contains the highest number of 1s. If multi...
Find the row with the maximum number of 1s in a sorted matrix.
Iterate through each row of the matrix and count the number of 1s in each row
Keep track of the row index with the maximum number of 1s
Return the index of the row with the highest count of 1s
By lighting both wires at the same time, the shorter wire will burn out first, allowing you to measure a specific duration of time.
Light both wires at the same time
Measure the time it takes for the shorter wire to burn out completely
The remaining length of the longer wire will indicate the specific duration of time
Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.
Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.
I applied via LinkedIn and was interviewed in Apr 2021. There was 1 interview round.
I applied via Naukri.com and was interviewed in Nov 2020. There were 3 interview rounds.
posted on 13 Jan 2015
I appeared for an interview before Nov 2016.
I am a dedicated and experienced consultant with a strong background in problem-solving and client management.
Over 5 years of experience in consulting roles
Skilled in analyzing data and providing strategic recommendations
Excellent communication and interpersonal skills
Proven track record of successfully managing client relationships
Strong ability to work in fast-paced environments and meet deadlines
I know multiple programming languages including Java, Python, and C++.
Proficient in Java with experience in developing web applications using Spring framework
Familiar with Python for data analysis and machine learning
Experience in C++ for developing high-performance applications
Also familiar with HTML, CSS, and JavaScript for front-end development
Class is a blueprint for creating objects, encapsulation is the process of hiding data and methods within a class.
Class is a template or blueprint that defines the properties and behaviors of an object.
Encapsulation is the process of bundling data and methods together within a class, hiding the internal details from the outside world.
Other features of OOP include inheritance, polymorphism, and abstraction.
Inheritance a...
Program to find the sum of squares of each term of Fibonacci series
Generate Fibonacci series using loop or recursion
Calculate square of each term
Add all squares to get the sum
I would like to join Cognizant because of its reputation as a leading global technology and consulting company.
Cognizant has a strong presence in the industry and is known for its innovative solutions.
I am impressed by Cognizant's commitment to digital transformation and its ability to deliver value to clients.
The company offers excellent career growth opportunities and a supportive work environment.
Cognizant's diverse...
A C code that prints out the elements of an array of strings.
Declare an array of strings
Use a loop to iterate through the array
Print out each element
The probability of rain in Chennai today depends on various factors such as season, weather conditions, and location.
The probability can be estimated by analyzing the current weather patterns and historical data.
Factors such as humidity, temperature, and wind speed can affect the probability of rain.
Local weather forecasts and satellite imagery can also provide insights into the likelihood of rain.
The probability of ra...
It is impossible to accurately predict the probability of India winning the next Cricket World Cup.
Sports events are unpredictable and depend on various factors such as team performance, weather conditions, injuries, etc.
Past performance of the team and individual players can be considered, but it does not guarantee future success.
Other teams participating in the tournament also play a significant role in determining t...
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