AmbitionBox
Interview Questions
- Reviews
- Salaries
- Interview Questions
- About Company
- Benefits
- Jobs
- Office Photos
- Community
Add office photos
Filter interviews by
Fastenal Software Developer Intern Interview Questions and Answers for Freshers
Fastenal Software Developer Intern Interview Experiences for Freshers
1 interview found
Anonymous
I applied via Campus Placement and was interviewed in Jan 2024. There were 3 interview rounds.
It had questions ranging from leetcode moderate to hard.
(2 Questions)
- Q1. Group Anagrams and some questions regarding OA
- Q2. Majority OOPs questions and basic language questions
(2 Questions)
- Q1. Few basic questions related to projects regarding the principles of Restful API
- Q2. DSA question - infix to postfix and common element in 3 sorted arrays
Interview Preparation Tips
Interview questions from similar companies
I appeared for an interview before Dec 2020.
(2 Questions)
Round duration - 90 minutes
Round difficulty - Hard
This was an online coding round where we were supposed to solve 2 questions under 90 minutes . Both the questions in my set were related to Graphs and were quite tricky and heavy to implement.
- Q1.
Path Counting in Directed Graph
Given a directed graph with a specified number of vertices
Vand edgesE, your task is to calculate the total number of distinct paths from a given source nodeSto all ot... - Ans.
Calculate the total number of distinct paths from a given source node to all other nodes in a directed graph.
Use dynamic programming to keep track of the number of paths from the source node to each node in the graph.
Consider using modular arithmetic to handle large numbers and prevent overflow.
Start by initializing the number of paths from the source node to itself as 1.
Iterate through the edges of the graph and updat...
- Q2.
Course Schedule II Problem Statement
You are provided with a number of courses 'N', some of which have prerequisites. There is a matrix named 'PREREQUISITES' of size 'M' x 2. This matrix indicates that fo...
- Ans.
Given courses with prerequisites, determine a valid order to complete all courses.
Use topological sorting to find a valid order of courses.
Create a graph with courses as nodes and prerequisites as edges.
Start with courses that have no prerequisites and remove them from the graph.
Continue this process until all courses are taken or there are no valid courses left.
If there is a cycle in the graph, it is impossible to com
(2 Questions)
Round duration - 60 Minutes
Round difficulty - Medium
This was a Data Structures and Algorithms round with some standard questions . I was expected to come up with an
efficient approach and code it as well .
- Q1.
Merge Intervals Problem Statement
You are provided with 'N' intervals, each containing two integers denoting the start time and end time of the interval.
Your task is to merge all overlapping intervals a...
- Ans.
Merge overlapping intervals and return sorted list of merged intervals.
Sort the intervals based on start times.
Iterate through intervals and merge overlapping intervals.
Return the merged intervals in sorted order.
- Q2.
Longest Route Problem Statement
Given a 2-dimensional binary matrix called
Matof size N x M that consists solely of 0s and 1s, find the length of the longest path from a specified source cell to a destina... - Ans.
Find the length of the longest path from a source cell to a destination cell in a binary matrix.
Use depth-first search (DFS) to explore all possible paths from source to destination.
Keep track of visited cells to avoid revisiting them.
Return the length of the longest path found, or -1 if no path exists.
(2 Questions)
Round duration - 50 Minutes
Round difficulty - Medium
This was also a DSA round where I was asked to code only one of the questions but I eventually ended up coding both
as I had some spare time and explained my approches very smoothly to the interviewer . This round went preety well .
- Q1.
Longest Increasing Subsequence Problem Statement
Given an array of integers with 'N' elements, determine the length of the longest subsequence where each element is greater than the previous element. This...
- Ans.
Find the length of the longest strictly increasing subsequence in an array of integers.
Use dynamic programming to solve this problem efficiently.
Initialize an array to store the length of the longest increasing subsequence ending at each index.
Iterate through the array and update the length of the longest increasing subsequence for each element.
Return the maximum value in the array as the result.
- 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.
Then 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 - 50 Minutes
Round difficulty - Medium
This was also a DSA round with 2 questions of Medium to Hard difficulty . I was expected to follow some clean code and OOPS principles to write the code in this round .
- Q1.
Rank from Stream Problem Statement
Given an array of integers
ARRand an integerK, determine the rank of the elementARR[K].Explanation:
The rank of any element in
ARRis defined as the number of elem... - Ans.
Given an array and an index, find the number of elements smaller than the element at that index appearing before it in the array.
Iterate through the array up to index K and count the number of elements smaller than ARR[K].
Return the count as the rank of ARR[K].
Handle edge cases like empty array or invalid index K.
- Q2.
LRU Cache Design Question
Design a data structure for a Least Recently Used (LRU) cache that supports the following operations:
1.
get(key)- Return the value of the key if it exists in the cache; otherw... - Ans.
Design a Least Recently Used (LRU) cache data structure that supports get and put operations with capacity constraint.
Implement a doubly linked list to maintain the order of recently used keys.
Use a hashmap to store key-value pairs for quick access.
Update the order of keys in the linked list on get and put operations.
Evict the least recently used key when the cache reaches its capacity.
Interview Preparation Tips
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.
Skills evaluated in this interview
I appeared for an interview before Dec 2020.
(2 Questions)
Round duration - 60 Minutes
Round difficulty - Medium
This round was purely based on Data Structures and Algorithms . One has to be fairly comfortable in solving Algorithmic problems to pass this round . Both the questions asked were quite common and luckily I had already prepared them from CodeStudio and LeetCode.
- Q1.
Binary Tree Traversals Problem Statement
Given a Binary Tree with 'N' nodes, where each node holds an integer value, your task is to compute the In-Order, Pre-Order, and Post-Order traversals of the binar...
- Ans.
Compute the In-Order, Pre-Order, and Post-Order traversals of a Binary Tree given in level-order format.
Implement functions to perform In-Order, Pre-Order, and Post-Order traversals of a Binary Tree.
Use level-order input to construct the Binary Tree.
Traverse the Binary Tree recursively to generate the required traversals.
Ensure proper handling of null nodes represented by -1 in the input.
Return the three traversals as
- Q2.
Reverse Linked List Problem Statement
Given a Singly Linked List of integers, your task is to reverse the Linked List by altering the links between the nodes.
Input:
The first line of input is an intege... - Ans.
Reverse a singly linked list by altering the links between nodes.
Iterate through the linked list and reverse the links between nodes
Use three pointers to keep track of the current, previous, and next nodes
Update the links between nodes to reverse the list
Return the head of the reversed linked list
(1 Question)
Round duration - 45 Minutes
Round difficulty - Medium
This round basically tested some concepts from Data Structures and File Manipulation .
- Q1.
Intersection of Two Arrays Problem Statement
Given two arrays
AandBwith sizesNandMrespectively, both sorted in non-decreasing order, determine their intersection.The intersection of two arrays in...
- Ans.
The problem involves finding the intersection of two sorted arrays efficiently.
Use two pointers to iterate through both arrays simultaneously.
Compare elements at the pointers and move the pointers accordingly.
Handle cases where elements are equal and update the intersection array.
Return the intersection array as the result.
Interview Preparation Tips
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.
Skills evaluated in this interview
I appeared for an interview before Jun 2016.
Interview Questionnaire
5 Questions
- Q1. Knowledge of Java
- Q2. Knowledge of Python
- Q3. Knowledge of PHP
- Q4. My team working skills
- Q5. Ability to handle pressure
- Ans.
I have the ability to handle pressure effectively.
I remain calm and focused in high-pressure situations.
I prioritize tasks and manage my time efficiently.
I seek support and guidance from team members when needed.
I maintain a positive attitude and adapt to changing circumstances.
I have successfully completed projects under tight deadlines.
Interview Preparation Tips
Experience: The interview was interactive and the interviewers seemed interested for every answer I gave even if it was a wrong one. They corrected me at every step.
Round: Technical + HR Interview
Experience: This was basically for testing my moral towards working and how i cope up with other colleagues.
College Name: Ramaiah Institute Of Technology
Interview Questionnaire
8 Questions
- Q1. Given two “ids” and a function getFriends(id) to get the list of friends of that person id, write a function that returns the list of mutual friends
- Ans.
Function to return mutual friends given two ids and getFriends(id) function
Call getFriends(id) for both ids to get their respective friend lists
Iterate through both lists and compare to find mutual friends
Return the list of mutual friends
- Q2. Given an “id” and a function getFriends(id) to get the list of friends of that person id, write a function that returns the list of “friends of friends” in the order of decreasing number of mutual friends,...
- Ans.
Function to return list of friends of friends in decreasing order of mutual friends
Use a set to store all friends of friends
Iterate through the list of friends of the given id
For each friend, iterate through their list of friends and count mutual friends
Sort the set of friends of friends by decreasing number of mutual friends
- Q3. Given a number of time slots – start time and end time,“a b”, find any specific time with the maximum number of overlapping. After solving the problem I had to prove my solution
- Ans.
Given time slots, find a specific time with maximum overlap. Prove solution.
Create a list of all start and end times
Sort the list in ascending order
Iterate through the list and keep track of the number of overlaps at each time
Return the time with the maximum number of overlaps
Prove solution by testing with different input sizes and edge cases
- Q4. Given an array of Integers, find the Longest sub-array whose elements are in Increasing Order
- Ans.
Find the longest sub-array with increasing order of integers.
Iterate through the array and keep track of the current sub-array's start and end indices.
Update the start index whenever the current element is smaller than the previous element.
Update the end index whenever the current element is greater than or equal to the next element.
Calculate the length of the sub-array and compare it with the longest sub-array found s
- Q5. Given an array of Integers, find the length of Longest Increasing Subsequence and print the sequence.
- Ans.
Find the length of longest increasing subsequence and print the sequence from an array of integers.
Use dynamic programming to solve the problem
Create an array to store the length of longest increasing subsequence ending at each index
Traverse the array and update the length of longest increasing subsequence for each index
Print the sequence by backtracking from the index with the maximum length
Time complexity: O(n^2)
Exam...
- Q6. Given a Sorted Array which has been rotated, write the code to find a given Integer
- Ans.
Code to find a given integer in a rotated sorted array.
Use binary search to find the pivot point where the array is rotated.
Divide the array into two subarrays and perform binary search on the appropriate subarray.
Handle edge cases such as the target integer not being present in the array.
- Q7. You have a number of incoming Integers, all of which cannot be stored into memory. We need to print largest K numbers at the end of input
- Ans.
Use a min-heap to keep track of the largest K numbers seen so far.
Create a min-heap of size K.
For each incoming integer, add it to the heap if it's larger than the smallest element in the heap.
If the heap size exceeds K, remove the smallest element.
At the end, the heap will contain the largest K numbers in the input.
- Q8. Implement LRU Cache
- Ans.
LRU Cache is a data structure that stores the most recently used items and discards the least recently used items.
Use a doubly linked list to keep track of the order of items in the cache
Use a hash map to store the key-value pairs for fast access
When an item is accessed, move it to the front of the linked list
When the cache is full, remove the least recently used item from the back of the linked list and the hash map
Interview Preparation Tips
Experience: Facebook visited our campus in July, 2012. We had an online coding round hosted on InterviewStreet. We were asked to solve just one problem. The given problem boils down to : Given a undirected graph, source and destination, write the code to find the total number of distinct nodes visited, considering all possible paths.
Tips: Those shortlisted had to fly to Delhi for a Personal Interview. There were four rounds of interview, each of 45 minutes. The questions were simple. But just solving the given problem wasn't enough.
There was much more interaction and short questions asked related to the problem
Round: Technical Interview
Experience: The above mentioned questions wer asked in the interview. For every solution I was asked to write the code on paper. The code should also include the implementation of the data structures used (I used heaps - so I was asked to implement heaps ). They are looking for someone with good problem solving skills and conceptually sound in data structures
College Name: BIT MESRA
Skills evaluated in this interview
Interview Preparation Tips
Experience: You need to submit your CV and they shortlist you on this basis.Fast and accurate coding.
Tips: Clearly specify any technical achievement.
Round: Coding
Experience: You are given 4 hours to solve a few algorithmic questions.Start practicing for this from sometime earlier.
Tips: There are puzzles available on the Facebook page.
Round: Technical Interview
Experience: Three interviews. All almost exclusively technical with 1-2 HR questions.
The questions are mainly algorithmic in nature and you need to code online while talking to them.
Tips: Be as accurate and clean with your code as possible.
General Tips: Be creative while answering the questions. They might ask you questions like 'What changes would you want to make to Facebook?'.
Prepare algorithmic questions for the interviews. Most companies like Facebook, Google, Microsoft and others focus on this.
Technical projects or internships will be beneficial.
Qualifying for or winning programming contests like overnite is very beneficial. Involvement in Social/Cultural activities or sports is not really essential.
Skill Tips: Being good at writing fast and correct code in any language helps a lot.
Skills: Programming
College Name: IIT KHARAGPUR
Interview Preparation Tips
Experience: In the coding round there were 3 questions to be solved in about 3 hrs.
Round: HR Interview
Experience: Expect the usual crazy questions like "Why LinkedIn?" and if you are already placed, be ready to give a proper justification for "Why LinkedIn and not XYZ?" so on. Be cool, you need not be accurate. Be well prepared with your resume and expect questions from them.
Tips: For the interview, just be confident and have a good resume ready with you.
Round: Other Interview
Experience: Coding Interview:
Simple coding questions. Make sure you first explain the logic to them and then you may be asked to write the code for it on the board using any language of your choice. Syntax is not a big deal, but don't make any logical errors. They are very friendly and may suggest certain solutions of their own. Make sure you can grasp them quickly. Find faults in your own code before they find it. Always try to give the best optimal solution. In case you are unable to do so then suggest possible improvements.
Round: Other Interview
Experience: Design Interview:
Some people may find this round a bit uneasy. But this round tests how good you are at designing solutions to problems. Most of the candidates were asked to build an online gaming system. And then they keep adding extra constraints and ideas and see if you can integrate them to your design. Database knowledge may be tested. They may also ask questions pertaining to you projects listed in your resume.
General Tips: An updated LinkedIn account with decent connections. ;)
Skill Tips: Be very strong with your coding ability. Whenever you code, do follow some standard procedures and make the code look simple and structured. Whenever you solve a coding question make sure you answer it completely for all the test cases. Partial results will only indicate that there is something wrong with the logic. Try to solve a complete question rather than multiple questions with partial results.
College Name: NIT SURATHKAL
Interview Preparation Tips
Experience: Three questions of increasing difficulty level. The first one was on string manipulation, the second was based on the iterative version of the merge sort algorithm and the last one on dynamic programming.
Total Questions: 3
Round: Other Interview
Experience: Eight students were selected for this stage which consisted of three separate interviews. The first one was on algorithms and programming, the second on system design and the third was HR. In the algorithms and programming interview I was asked two questions. The interviewer asked me to first explain the proposed algorithm and then I was expected to write the code on a white board they had provided. Three weeks after the interviews the selected candidates were informed through the concerned placement coordinator.
General Tips: Don't panic, the interviewers don't expect you to come up with the optimum result directly and they will give you enough time to refine your solution.
Skill Tips: No special preparation is required. Just make sure that you have understood the fundamentals
of Data Structures and Algorithms well.
College Name: NIT SURATHKAL
Interview Preparation Tips
College Name: NIT SURATHKAL
I appeared for an interview before Mar 2021.
(3 Questions)
Round duration - 60 minutes
Round difficulty - Medium
This was a 1 hour online coding round on hackerrank platform. 3 DSA questions were given.
- Q1.
Stock Trading Maximum Profit Problem
Given the stock prices for 'N' days, your goal is to determine the maximum profit that can be achieved. You can buy and sell the stocks any number of times but can onl...
- Ans.
The goal is to determine the maximum profit that can be achieved by buying and selling stocks on different days.
Iterate through the stock prices and buy on days when the price is lower than the next day, and sell on days when the price is higher than the next day.
Calculate the profit by summing up the differences between buying and selling prices.
Repeat the process for each test case and output the maximum profit possi
- Q2.
Ninja's Complement Problem Statement
Every day, Ninja dreams of a number but does not understand its significance. Upon investigation, Ninja discovers that converting this number to binary, taking its com...
- Ans.
Convert a number to binary, take its complement, and convert back to decimal.
Convert the given number to binary representation
Take the complement of the binary number by swapping '1's and '0's
Convert the complement back to decimal representation
Return the complement number for each test case
- Q3.
Bit Majority Number Generation
You are given an array
arrconsisting ofNintegers. Construct a number from these integers such that, for each bit position, if the quantity of set bits (1s) is greater tha... - Ans.
Generate a number based on majority set bits in given integers array.
Iterate through each bit position and count set and unset bits
Construct the resulting number based on majority set bits at each position
Return the final constructed number
(2 Questions)
Round duration - 60 minutes
Round difficulty - Easy
In this round, a DSA question was first asked. Then a lot of discussion regarding the various test cases around this question took place. (e.g, handing of -ve numbers , decimals , overflow etc).
Main concentration was just to get as many as test cases possible and an efficient solution as well.
And Some common question like why you coding in C++?
- Q1.
Sum of Digits Problem Statement
Given an integer 'N', continue summing its digits until the result is a single-digit number. Your task is to determine the final value of 'N' after applying this operation ...
- Ans.
Given an integer, sum its digits until a single-digit number is obtained.
Iteratively sum the digits of the integer until a single-digit number is reached
Output the final single-digit integer for each test case
Handle multiple test cases efficiently
- Q2. What are the advantages of Object-Oriented Programming (OOP)?
- Ans.
OOP allows for code reusability, modularity, and easier maintenance.
Encapsulation: Bundling data and methods together to protect data from outside interference.
Inheritance: Allows for the creation of new classes based on existing classes, promoting code reuse.
Polymorphism: Objects can be treated as instances of their parent class, allowing for flexibility and extensibility.
Modularity: Breaking down a program into small...
(1 Question)
Round duration - 60 minutes
Round difficulty - Easy
Again one coding question to be done on shared screen
- Q1.
Counting Triangles in Graphs
Given two graphs – a directed graph
DIR_GRAPHand an undirected graphUNDIR_GRAPH– you are tasked with counting the number of triangles in each of the graphs.Example:
In t...
- Ans.
Count the number of triangles in a directed and undirected graph.
Parse the input to extract vertices, edges, and edges between vertices.
Implement a function to count triangles in both directed and undirected graphs.
Return the counts of triangles for each test case.
Interview Preparation Tips
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.
Skills evaluated in this interview
Fastenal Interview FAQs
Some of the top questions asked at the Fastenal Software Developer Intern interview for freshers -
Tell us how to improve this page.
Fastenal Interviews By Designations
- Fastenal Quality Analyst Interview Questions
- Fastenal Engineer Interview Questions
- Fastenal Scrum Master Interview Questions
- Fastenal Software Developer Interview Questions
- Fastenal Senior Software Engineer Interview Questions
- Fastenal IT Data Analyst Interview Questions
- Fastenal IT Automation Test Engineer Interview Questions
- Fastenal Software Developer Intern Interview Questions
- Show more
Interview Questions for Popular Designations
- Software Engineer Interview Questions
- Senior Software Engineer Interview Questions
- Associate Software Engineer Interview Questions
- Softwaretest Engineer Interview Questions
- Software Engineer Trainee Interview Questions
- Software Developer Interview Questions
- Software Development Engineer Interview Questions
- Junior Software Developer Interview Questions
- Show more
Fastenal Software Developer Intern Interview Process for Freshers
based on 1 interview
Interview experience
Software Developer Intern Interview Questions from Similar Companies
Fast track your campus placements
|
Software Developer
74
salaries
|  ₹11.5 L/yr - ₹23 L/yr |
|
Senior Software Engineer
58
salaries
| ₹16.5 L/yr - ₹39 L/yr |
|
Software Engineer
48
salaries
| ₹11 L/yr - ₹25 L/yr |
|
Developer
34
salaries
| ₹12.1 L/yr - ₹21 L/yr |
|
IT Software Engineer
25
salaries
| ₹15 L/yr - ₹28.8 L/yr |
BigBasket
ByteDance
MagicPin
HealthKart
- Home >
- Interviews >
- Fastenal Interview Questions >
- Fastenal Software Developer Intern Interview Questions for Fresher
