Altimetrik Associate Software Engineer Interview Questions and Answers

This was a very easy test. It can be crackable easily.

Q1. There is only 1 technical happened. Core java, angular, JUNIT
Ans. Basics of core java must, Angular if worked on it
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Q2. Junit test cases if worked previously.
Ans. 
Junit test cases should always be re-run to ensure code quality and prevent regression.
• Junit test cases should be run after every code change.

• Test cases should cover all possible scenarios and edge cases.

• Test cases should be automated to save time and ensure consistency.

• Test cases should be reviewed and updated regularly.

• Regression testing should be performed to ensure new changes do not break existing functionality.
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Q1. Salary discussion, Why this company kind of question.
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Q1. Core Java Questions on Stream API, Exception handling, Java 8 features and some questions from collections
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Q1. Small program to write and other questions on Spring, Spring Boot, Hibernate, JPA, jQuery and HTML & CSS.
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Q1. Basic discussion on salary expectations and other general discussion.
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Round duration - 90 minutes
Round difficulty - Medium

We were supposed to give test in any time between 3 PM to 9 PM.

Q1. 
Total Unique Paths Problem Statement
You are located at point ‘A’, the top-left corner of an M x N matrix, and your target is point ‘B’, the bottom-right corner of the same matrix. Your task is to calcula...read more
Ans. 
The problem involves finding the total number of unique paths from the top-left to bottom-right cell of a matrix by moving only right or down.
• Use dynamic programming to solve the problem efficiently.

• Create a 2D array to store the number of unique paths at each cell.

• Initialize the first row and first column with 1 as there is only one way to reach them.

• For each cell (i, j), the number of unique paths is the sum of paths...read more
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Q2. 
Subtree Node Count Problem
We are provided with a tree containing 'N' nodes, numbered from 0 to N-1. The objective is to determine the total number of nodes within each subtree of the provided tree. Speci...read more
Ans. 
Given a tree with N nodes, find the number of elements in each subtree rooted at every node.
• Traverse the tree using Depth First Search (DFS) to calculate subtree sizes for each node.

• Use an array to store subtree sizes for each node, starting with leaf nodes having size 1.

• The subtree size of a node is the sum of subtree sizes of its children plus 1 for the node itself.
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Round duration - 120 minutes
Round difficulty - Medium

Pair Programming Interview( this round is similar to machine coding round) it started around 11 AM

Focus Areas: Problem solving and implementation of extensions.

The pair coding round is focused on OOPS concepts. You are paired with a TWer for this round. They let you code first for an hour and in the next hour they review your code and suggest changes which would improve the code structure, readability and make it modular and reusable and functional.
 

Q1. 
River Crossing: Help Ninja Cross Over
Ninja stands at the start of a wooden bridge over a river. Some segments of the bridge are damaged. The undamaged segments, marked as 'safe', are listed in an array S...read more
Ans. 
Check if Ninja can cross the river by jumping from one safe segment to another based on given constraints.
• Iterate through the 'SAFE' array and check if Ninja can make the required jumps to reach the last safe segment.

• Ensure that the next jump is either 'X' - 1, 'X', or 'X' + 1 units from the previous jump.

• Return 'true' if Ninja can successfully cross the river, otherwise return 'false'.
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Round duration - 120 minutes
Round difficulty - Medium

Students who were shortlisted from Pair Programming round was selected for this round around 3 PM. In this round there were two interviewer.

Q1. 
Middle of a Linked List
You are given the head node of a singly linked list. Your task is to return a pointer pointing to the middle of the linked list.
If there is an odd number of elements, return the ...read more
Ans. 
Return the middle element of a singly linked list, or the one farther from the head if there are even elements.
• Traverse the linked list with two pointers, one moving twice as fast as the other

• When the fast pointer reaches the end, the slow pointer will be at the middle

• Return the element pointed to by the slow pointer
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Quantitative ability and logical ability

Q1. In which programming language you are good at?
Ans. 
I am proficient in Java and Python.
• Strong understanding of object-oriented programming concepts

• Experience with Java frameworks such as Spring and Hibernate

• Proficient in Python libraries such as NumPy and Pandas
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Q2. Write a program to print HCF of numbers as output
Ans. 
Program to print HCF of numbers as output
• Take input of two numbers from user

• Find the smaller number between the two

• Run a loop from 1 to the smaller number

• Check if both numbers are divisible by the current loop variable

• If yes, update the HCF variable

• Print the HCF as output
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Q1. Why should we hire you?
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