Pelican.ai Software Engineer Trainee Interview Questions and Answers

Coding test includes 2 codes and some mcq questions

Q1. Introduce yourself and project
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Q2. Coding questions
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Q1. Project pverview
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Q2. Basic technical questions
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Q1. Don't remember so I have no
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Q2. I can't remember it
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Q1. I don't know the res
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Q2. I can't remember it
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Advanced Java coding

Q1. Entire core Java arrays and strings
Ans. 
Core Java arrays and strings are fundamental data structures used for storing and manipulating data in Java programming.
• Arrays in Java are used to store multiple values of the same data type in a single variable.

• Strings in Java are objects that represent sequences of characters.

• Arrays and strings in Java are both indexed collections, with arrays being mutable and strings being immutable.

• Example: String[] names = {"Alic
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Q2. Java collections and Framework
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Q1. Some coding and framework
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Q2. REST assured and API
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Q1. Basics of kotlin, sealed class, viewmodel implementation,
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Q2. Caching mechanism
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Questions on dsa, coding question, overall good experience and so on

Q1. Binary search and sorting
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Q2. Prime number coding question
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Technical aspects about linked list,trees, stacks

Topic related to humanities

Q1. Tell me about yourself? Why choose python and tell me about projects?
Ans. 
I am a software developer with a passion for Python. I have worked on various projects showcasing my skills.
• I chose Python because of its simplicity, readability, and vast community support.

• Python's extensive libraries and frameworks make it suitable for a wide range of applications.

• I have worked on projects like building web applications using Django, data analysis using pandas, and automation scripts using Selenium.

• O...read more
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Q2. Why gaotek? Difference between Application and System Software? Tell me about project you done?
Ans. 
I chose Gaotek because of its reputation in the software development industry.
• Gaotek is known for its cutting-edge technology and innovative solutions.

• The company has a strong focus on professional growth and learning opportunities.

• Gaotek's work culture promotes collaboration and teamwork.

• I was impressed by the positive reviews and success stories of Gaotek's previous interns and employees.
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Q3. Difference between python and C
Ans. 
Python is a high-level interpreted language while C is a low-level compiled language.
• Python is dynamically typed while C is statically typed.

• Python has automatic memory management while C requires manual memory management.

• Python is easier to learn and write code in while C is more efficient and faster.

• Python is used for web development, data analysis, and machine learning while C is used for system programming and embe...read more
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Q4. Why you can go with unpaid internship??
Ans. 
Unpaid internships can provide valuable learning opportunities and networking connections.
• Gain practical experience and enhance skills

• Build a professional network

• Explore different career paths

• Gain exposure to real-world projects

• Increase chances of future employment

• Learn from experienced professionals

• Develop a strong work ethic

• Demonstrate dedication and commitment
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Round duration - 70 Minutes
Round difficulty - Medium

Timing was 9:15AM. Platform was not very good. Questions were not well explained.

Q1. Merge overlapping intervals
Given 'N' number of intervals, where each interval contains two integers denoting the boundaries of the interval. The task is to merge all the overlapping intervals and ...read more
Ans. Brute Force
1. We are given the function MERGEINTERVALS(), which takes a 2D vector representing the vector of intervals and returns another 2D vector which is the vector of merged intervals.
2. We create another function ISOVERLAP() to check if the current interval overlaps with the other interval.
3. Now we create an empty 2D vector “RES” to store finally merged intervals and another boolean vector “VIS” to mark if the current in...read more
Answered by CodingNinjas
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Q2. Rat in a Maze
You are given a starting position for a rat which is stuck in a maze at an initial point (0, 0) (the maze can be thought of as a 2-dimensional plane). The maze would be given in the form of a...read more
Ans. Bactracking
Approach: We can start the traversal of the paths from the rat’s starting position, i.e. (0,0) keeping track of the visited cells during the traversal. We will recursively go through all the paths possible until the last index of the grid (destination) is reached, and add the path information using which the rat successfully reached the end.
 
Algorithm is as follows:
 
1. Take the starting position of th...read more
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Q3. Permutations of a String
You are given a string 'STR' consisting of lowercase English letters. Your task is to return all permutations of the given string in lexicographically increasing order.
S...read more
Ans. Backtracking
The idea is to fix a character at a position and then find the permutations for rest of the characters.
Make a list ‘ans’ which will contain the permutations of the given string.
 
Algorithm:
Let’s define a function generatePermutaionsHelper(Str, l, r). This function generates the permutations of the substring which starts from index  ‘l’ and ends at index  ‘r’.
• Call the function: generatePermutai...read more
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