Headrun Technologies Interview Questions and Answers for Experienced

Test on apptitude reasoning

General topics gd

Q1. Technical questions o
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Q1. Salary discussion and general
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Round duration - 90 minutes
Round difficulty - Easy

It happens in very friendly manner.

Q1. 
Paths in a Matrix Problem Statement
Given an 'M x N' matrix, print all the possible paths from the top-left corner to the bottom-right corner. You can only move either right (from (i,j) to (i,j+1)) or dow...read more
Ans. 
Print all possible paths from top-left to bottom-right in a matrix by moving only right or down.
• Use backtracking to explore all possible paths from top-left to bottom-right in the matrix.

• At each cell, recursively explore moving right and down until reaching the bottom-right corner.

• Keep track of the current path and add it to the result when reaching the destination.
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Q2. Can you create 2 tables in SQL and perform different operations on them?
Ans. 
Yes, I can create 2 tables in SQL and perform operations like INSERT, SELECT, UPDATE, and DELETE.
• Create Table 1: CREATE TABLE employees (id INT, name VARCHAR(50), salary DECIMAL(10,2));

• Create Table 2: CREATE TABLE departments (dept_id INT, dept_name VARCHAR(50));

• Insert Data: INSERT INTO employees VALUES (1, 'John Doe', 50000);

• Select Data: SELECT * FROM employees WHERE salary > 40000;

• Update Data: UPDATE employees SET...read more
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Round duration - 90 minutes
Round difficulty - Medium

No problem occur very friendly environment.

Round duration - 90 minutes
Round difficulty - Hard

Q1. 
Rat in a Maze Problem Statement
You need to determine all possible paths for a rat starting at position (0, 0) in a square maze to reach its destination at (N-1, N-1). The maze is represented as an N*N ma...read more
Ans. 
Find all possible paths for a rat in a maze from source to destination.
• Use backtracking to explore all possible paths in the maze.

• Keep track of visited cells to avoid revisiting them.

• Explore all possible directions (up, down, left, right) from each cell.

• Add the current direction to the path and recursively explore further.

• If the destination is reached, add the path to the list of valid paths.
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Had DSA and aptitude questions

Q1. DSA a questions, Database Questions
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Q1. 5 min question and answers about company
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Q1. Explan PV Ratio and difference between accrual and prepaid expense.
Ans. 
PV ratio is the ratio of contribution to sales. Accrual expenses are recognized but not yet paid, while prepaid expenses are paid but not yet recognized.
• PV ratio is calculated by dividing contribution by sales.

• It helps in determining the break-even point and the impact of changes in sales volume on profit.

• Accrual expenses are expenses that have been incurred but not yet paid, such as salaries or interest.

• Prepaid expens...read more
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Q1. Journal entries related to sales return and accounts payable.
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