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Apar Industries Web Developer Interview Questions and Answers
Apar Industries Web Developer Interview Experiences
1 interview found
(1 Question)
- Q1. Tell me something about yourself
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Software Developer Interview Questions & Answers
Cadence Design Systems
Anonymous
posted on 16 Sep 2021
I appeared for an interview before Sep 2020.
(3 Questions)
Round duration - 30 minutes
Round difficulty - Easy
- Q1. How do you search for a node in a linked list?
- Ans.
To search for a node in a linked list, iterate through the list and compare each node's value with the target value.
Start at the head of the linked list
Iterate through each node by following the 'next' pointer
Compare the value of each node with the target value
Return the node if found, otherwise return null
- Q2. How do you detect a loop in a linked list?
- Ans.
To detect a loop in a linked list, we can use Floyd's Cycle Detection Algorithm.
Initialize two pointers, slow and fast, at the head of the linked list.
Move slow pointer by one step and fast pointer by two steps.
If there is a loop, the two pointers will eventually meet.
Alternatively, we can use a hash set to store visited nodes and check for duplicates.
- Q3. Implement a stack using a singly linked list.
- Ans.
Implement a stack using a singly linked list
Create a Node class with data and next pointer
Create a Stack class with top pointer pointing to the top of the stack
Implement push, pop, and peek operations by manipulating the linked list
Example: Node class - Node { int data; Node next; }
(2 Questions)
Round duration - 40 minutes
Round difficulty - Easy
- Q1. What is the top view of a binary tree?
- Ans.
The top view of a binary tree shows the nodes visible from the top when looking down from the root node.
The top view of a binary tree is the set of nodes visible from the top when looking down from the root node.
Nodes at the same horizontal distance from the root are considered at the same level in the top view.
If multiple nodes are at the same horizontal distance, only the topmost node at that level is included in the...
- Q2. Explain the process of deleting a node from a linked list, covering all possible cases.
- Ans.
Deleting a node from a linked list involves updating pointers to maintain the list's integrity.
Identify the node to be deleted by traversing the list
Update the previous node's next pointer to skip the node to be deleted
Free the memory allocated to the node to be deleted
Interview Preparation Tips
Do practice a lot of questions on linked list and stacks as these are two most important data structures asked in the interview. Also, try to implement it yourself without seeing the solution. Also prepare for Computer Science subjects like Operating System, Database Management System, Computer Networks, etc. I prepared them through Coding Ninjas notes which were simpler and easy to understand.
Application resume tips for other job seekersKeep your resume short and up to mark and check spellings before submitting it for the interview process.
Final outcome of the interviewSelectedSkills evaluated in this interview
Software Developer Interview Questions & Answers
Cadence Design Systems
Anonymous
posted on 10 May 2015
Interview Questionnaire
9 Questions
- Q1. Tree questions related like traversal?
- Q2. Locate the sum of 2 numbers in a linear array (Unsorted and sorted) and their complexities
- Ans.
Locate sum of 2 numbers in a linear array (unsorted and sorted) and their complexities
For unsorted array, use nested loops to compare each element with every other element until the sum is found
For sorted array, use two pointers approach starting from the beginning and end of the array and move them towards each other until the sum is found
Complexity for unsorted array is O(n^2) and for sorted array is O(n)
- Q3. Pointers with increment/decrement, address of and value at operators (++,–,*,&)
- Ans.
Pointers are used to manipulate memory addresses and values in C++. Increment/decrement, address of and value at operators are commonly used.
Incrementing a pointer moves it to the next memory location of the same data type
Decrementing a pointer moves it to the previous memory location of the same data type
The address of operator (&) returns the memory address of a variable
The value at operator (*) returns the value sto...
- Q4. A point and a rectangle is present with the given coordinates. How will you determine whether the point is inside or outside the rectangle?
- Ans.
To determine if a point is inside or outside a rectangle, we check if the point's coordinates fall within the rectangle's boundaries.
Check if the point's x-coordinate is greater than the left edge of the rectangle
Check if the point's x-coordinate is less than the right edge of the rectangle
Check if the point's y-coordinate is greater than the top edge of the rectangle
Check if the point's y-coordinate is less than the b...
- Q5. There is a point inside the rectangle. How will you determine the line that passes through the point and divides the rectangle into 2 equal halves?
- Ans.
To find line that divides rectangle into 2 equal halves through a point inside it.
Find the center of the rectangle
Draw a line from the center to the given point
Extend the line to the opposite side of the rectangle
The extended line will divide the rectangle into 2 equal halves
- Q6. There is a scheme which contains 8-bit and 16-bit signed numbers. How many such combinations are possible?
- Ans.
There are multiple combinations of 8-bit and 16-bit signed numbers. How many such combinations are possible?
There are 2^8 (256) possible combinations of 8-bit signed numbers.
There are 2^16 (65,536) possible combinations of 16-bit signed numbers.
To find the total number of combinations, we can add the number of combinations of 8-bit and 16-bit signed numbers.
Therefore, the total number of possible combinations is 256 + ...
- Q7. You are given an array of elements. Some/all of them are duplicates. Find them in 0(n) time and 0(1) space. Property of inputs – Number are in the range of 1..n where n is the limit of the array
- Ans.
Find duplicates in an array of elements in 0(n) time and 0(1) space.
Use the property of inputs to your advantage
Iterate through the array and mark elements as negative
If an element is already negative, it is a duplicate
Return all the negative elements as duplicates
- Q8. Given a array of digits. print all combination of of these i.e all no formed by these. repetition allowed. and then repetition not allowed example: i/p: arr={1,2,3} o/p: (without repetition) 123, 132, 213,...
- Ans.
Generate all combinations of digits from an array, allowing and disallowing repetition.
Use recursion or backtracking to generate combinations.
For repetition allowed: e.g., arr={1,2}, combinations are 11, 12, 21, 22.
For repetition not allowed: e.g., arr={1,2,3}, combinations are 123, 132, 213, 231, 312, 321.
Utilize a set to track used digits when repetition is not allowed.
- Q9. Questions on project
Interview Preparation Tips
Duration: 90 minutes
Total Questions: 3
Round: HR Interview
Experience: HR interview was all about my projects, my background and a few more typical HR questions. It was pretty easy to answer them.
Skills: Algorithm, Data structure, C++
College Name: IIT ROORKEE
Skills evaluated in this interview
I appeared for an interview in Sep 2016.
Interview Preparation Tips
Experience: Questions aren't tough but they take more time to read itself.
Tips: First try to attempt the questions which are seemingly small. Reading bigger questions first and wasting more time on that isnt a good idea at all.
Duration: 30 minutes
Total Questions: 30
Skills: Technical Skill, Analytical Skills
College Name: IIT Kharagpur
Kavya Mrudula
I applied via Campus Placement
Interview Questionnaire
4 Questions
- Q1. What is a program, task and threads
- Ans.
A program is a set of instructions that tells a computer what to do. A task is a unit of work performed by a program. A thread is a sequence of instructions within a task.
A program is a collection of instructions that are executed by a computer to perform a specific task.
A task is a unit of work that is performed by a program. It can be a specific action or a set of actions.
A thread is a sequence of instructions within...
- Q2. Delete a node in a linked list
- Ans.
To delete a node in a linked list, we need to adjust the pointers of the previous and next nodes.
Find the node to be deleted by traversing the linked list
Adjust the pointers of the previous and next nodes to skip the node to be deleted
Free the memory occupied by the node to be deleted
- Q3. What is a function pointer and volatile type in c
- Ans.
A function pointer is a variable that stores the address of a function. Volatile type is used to declare variables that can be modified by external factors.
Function pointers are used to pass functions as arguments to other functions.
Volatile type is used when a variable's value can be changed unexpectedly by external factors.
Function pointers can be used to implement callbacks or event handling mechanisms.
Volatile type...
- Q4. Summarise your resume
- Ans.
Experienced software developer with expertise in Java, Python, and SQL
Proficient in Java, Python, and SQL programming languages
Developed web applications using Java Spring framework
Experience with database management and optimization using SQL
Worked on various software projects in a team environment
Interview Preparation Tips
Experience: Paper was challenging and It was well set.
Duration: 90 minutes
Total Questions: 60
Round: Technical Interview
Experience: It was a very good experience overall. Interviewer helped to ease the tension.
Tips: Waiting time can be reduced.
General Tips: Prepare for precedence of operators in C.
Try to be fast in solving the problems.
Skills: Knowledge Of Your Resume Points, Pointers In C, Operating System Basics
Duration: 2
College Name: IIT Madras
Motivation: Qualcomm is a
Skills evaluated in this interview
Interview Questionnaire
5 Questions
- Q1. In C programming they asked about storage classes, Volatile , Whole compilation process steps by steps, Dangling pointer , Memory leak, Memory corruption
- Q2. In data structure they asked question on String , Linked List and array
- Q3. Data structure question section is easy don't go for complex algorithms just study basic algorithms. like reverse the linked list in group on given size
- Q4. They also asked question on bit manipulation. Like Check that given number binary representation is palindrome or not?
- Q5. Swap even and odd bits in given number
- Ans.
Swap even and odd bits in a given number
Create a mask for even bits and odd bits
Shift even bits to right and odd bits to left
Combine even and odd bits using bitwise OR operator
Interview Preparation Tips
Skills evaluated in this interview
I applied via Referral and was interviewed before Dec 2020. There were 3 interview rounds.
Interview Questionnaire
1 Question
- Q1. Signal and power integrity question
- Ans. Refer book by Eric bogatin
Interview Preparation Tips
I appeared for an interview before Sep 2020.
(1 Question)
Round duration - 45 minutes
Round difficulty - Medium
Its a zoom call interview which lasted for 45 minutes. initially there are two panel members in which one is very targetting at me. They asked me different type of questions like jumping from DSA to project then to python then again java. Its a mixed combo pack type interview. for each and every question they asked me the real time example. The discussion on my project lasted for 15-20 mins.
- Q1.
Count Set Bits Problem Statement
Given a positive integer
N, compute the total number of '1's in the binary representation of all numbers from 1 to N. Return this count modulo 1e9+7 because the result can... - Ans.
Count the total number of set bits in the binary representation of numbers from 1 to N modulo 1e9+7.
Use bitwise operations to count the set bits in each number from 1 to N.
Keep track of the total set bits and return the result modulo 1e9+7.
Optimize the solution to handle large values of N efficiently.
Consider using dynamic programming or precomputing values for faster computation.
Round duration - 30 mins
Round difficulty - Easy
This round was a zoom interview. The interview started with my brief introduction. This time the interview was more interested in my hobbies and passions. He asked me what do you do to keep yourself updated with the latest technology trends?
Interview Preparation Tips
Tip 1 : Do participate in all the coding contests, long challenges held by codechef, codeforces
Tip 2 : Practice all kinds of problems on leetcode, gfg, coding ninjas
Tip 3 : When you are writing a written exam for a particular company, make sure you get to know about the company in detail.
Tip 1 : Make your resume short and sweet(mostly 1 page, max 2 pages) is preferred.
Tip 2 : Make sure your resume is crisp rather than descriptive
Tip 3 : Do not lie on your resume
Skills evaluated in this interview
I appeared for an interview before Oct 2020.
(2 Questions)
Round duration - 60 minutes
Round difficulty - Medium
This round had 2 coding problems and we had to code it on hackerearth only.
The use of Outside IDE was forbidden.
The timing of test was 12:00 PM to 1:00 PM.
- Q1.
Merge Overlapping Intervals Problem Statement
Given a specified number of intervals, where each interval is represented by two integers denoting its boundaries, the task is to merge all overlapping interv...
- Ans.
Merge overlapping intervals and return sorted list of merged intervals.
Iterate through intervals and merge overlapping ones
Sort merged intervals based on starting times
Handle edge cases like empty input or single interval
Use a data structure like list or array to store merged intervals
- Q2.
Search In Rotated Sorted Array Problem Statement
Given a rotated sorted array
ARRof size 'N' and an integer 'K', determine the index at which 'K' is present in the array.Note:
1. If 'K' is not present... - Ans.
Given a rotated sorted array, find the index of a given integer 'K'.
Use binary search to find the pivot point where the array is rotated.
Based on the pivot point, perform binary search on the appropriate half of the array to find 'K'.
Handle cases where 'K' is not present in the array by returning -1.
(2 Questions)
Round duration - 60 minutes
Round difficulty - Medium
This was an Online F2F Technical Round conducted on CodePair : Hackerearth. So, Basically You have to Run and Submit ( Pass All Test cases) in the Interview Round also (Like normal Coding Test) in Hackerearth & along with that You should have to explain your Code and Approach to the Interviewers.
The Interviewers were helpful and didn't hesitate in giving hints.
Timing - 11:00 A.M to 12:00 P.M
- Q1.
Minimum Fountains Activation Problem
In this problem, you have a one-dimensional garden of length 'N'. Each position from 0 to 'N' has a fountain that can provide water to the garden up to a certain range...
- Ans.
Find the minimum number of fountains to activate to water the entire garden.
Iterate through the array to find the coverage of each fountain.
Keep track of the farthest coverage reached by activating fountains.
Activate the fountain that covers the farthest point not yet covered.
Repeat until the entire garden is watered.
- Q2.
Bellman Ford Shortest Path Problem
Given a directed weighted graph comprised of vertices labeled 1 to N and M edges, where each edge connects two nodes u and v with a weight w representing the distance be...
- Ans.
Bellman Ford algorithm is used to find the shortest path in a graph with negative weights.
Initialize distances from source to all vertices as infinity, and distance to source as 0.
Relax all edges V-1 times to find shortest path.
If any distance is updated in Vth iteration, then there is a negative weight cycle.
Return the distance to destination vertex after V-1 iterations.
Example: For the given graph, shortest path from...
Round duration - 30 minutes
Round difficulty - Easy
This was a Google Meet Video Call. The HR was friendly and asked basic questions.
The timing was 2:00 PM to 2:30 PM.
Interview Preparation Tips
Tip 1 : Make sure that you are thorough with CS concepts beforehand.
Tip 2 : Even when you are explaining the approach to a question, try to parallelly think about how you would code it.
Tip 3 : Read the previous interview experiences. It would give a fair idea of the kind of questions one should expect.
Tip 4 : Practice atleast 200 questions from coding platforms like CodeZen, LeetCode, Interviewbit as they contain common interview questions.
Tip 1 : Mention atleast 1 project and past work experience as it sets good impression.
Tip 2 : Keep your resume up to date for the role you are applying.
Tip 3 : Try to keep your resume of 1 Page.
Skills evaluated in this interview
Software Developer Interview Questions & Answers
Mirafra Technologies
Boya Rajasekhar
posted on 8 Aug 2024
(5 Questions)
- Q1. What is oops concept example with each one
- Ans.
Object-oriented programming concepts include encapsulation, inheritance, polymorphism, and abstraction.
Encapsulation: bundling data and methods that operate on the data into a single unit (class). Example: class Car with properties like make, model, and methods like start(), stop().
Inheritance: creating new classes based on existing classes, inheriting their attributes and methods. Example: class SUV inheriting from cl...
- Q2. What is data structures and types with examples of all types
- Ans.
Data structures are ways of organizing and storing data in a computer so that it can be accessed and used efficiently.
Types of data structures include arrays, linked lists, stacks, queues, trees, graphs, and hash tables.
Arrays are a collection of elements stored in contiguous memory locations, accessed using an index.
Linked lists are a series of nodes where each node contains data and a reference to the next node.
Stack...
- Q3. What is class and objects with example and code
- Ans.
A class is a blueprint for creating objects in object-oriented programming. Objects are instances of classes.
A class defines the properties and behaviors of objects. For example, a 'Car' class may have properties like 'color' and 'model', and behaviors like 'drive' and 'stop'.
An object is an instance of a class. For example, 'myCar' can be an object of the 'Car' class with specific values for 'color' and 'model'.
Code e...
- Q4. What is virutal function and staic functions
- Ans.
Virtual functions are functions in a base class that are overridden in derived classes, while static functions belong to the class itself rather than instances.
Virtual functions allow for dynamic binding and polymorphism in object-oriented programming.
Static functions are associated with the class itself and can be called without creating an instance of the class.
Example: virtual void display() = 0; // pure virtual fun...
- Q5. What is project u did in present company
- Ans.
Developed a web-based project management tool for tracking tasks and deadlines.
Used AngularJS for front-end development
Implemented RESTful APIs for communication between front-end and back-end
Utilized MySQL database for storing project data
Write a function over loading and friend class with example?
Interview Preparation Tips
Skills evaluated in this interview
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