o9 Solutions Interview Questions, Process, and Tips

Round duration - 45 minutes
Round difficulty - Easy

This was a technical interview round where DSA questions were discussed. Questions on subjects related to my branch(EEE) and some questions on maths as I had mentioned my Olympiad rank were also asked.

Q1. 
Angle Calculation Between Clock Hands
Given a specific time in hours and minutes, your task is to calculate the smallest possible angle between the hour hand and the minute hand of a clock.
Example:
Inp...read more
Ans. 
Calculate the smallest angle between the hour and minute hands of a clock for a given time.
• Calculate the angles of the hour and minute hands based on the input time.

• Find the absolute difference between the angles of the hour and minute hands.

• Return the smaller angle between the two possible angles.

• Ensure to handle cases where the smaller angle is greater than 180 degrees.
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Q2. 
Factorial Calculation Problem Statement
Develop a program to compute the factorial of a given integer 'n'.
The factorial of a non-negative integer 'n', denoted as n!, is the product of all positive integ...read more
Ans. 
Develop a program to compute the factorial of a given integer 'n'.
• Create a function to calculate factorial using a loop or recursion

• Handle edge cases such as negative input or input exceeding constraints

• Return 'Error' if factorial is undefined

• Example: For input 5, output should be 120
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