Diet Doctor Interview Questions and Answers

Round duration - 90 Minutes
Round difficulty - Medium

2 coding questions and 20 mcq
 

Q1. 
Rotting Oranges Problem Statement
You are given a grid containing oranges where each cell of the grid can contain one of the three integer values:
• 0 - representing an empty cell
• 1 - representing a fre...read more
Ans. 
Find the minimum time required to rot all fresh oranges in a grid.
• Use Breadth First Search (BFS) to simulate the rotting process.

• Track the time taken to rot all oranges and return -1 if any fresh oranges remain.

• Handle edge cases like no fresh oranges or all oranges already rotten.

• Consider using a queue to efficiently process adjacent oranges.

• Ensure to update the grid with the new state of oranges after each second.
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Q2. 
Calculate Sum of Proper Divisors
Given a natural number N, return the sum of all its proper divisors.
A proper divisor of Y is defined as a number X such that X < Y and Y % X = 0.
Example:
Input:
T...read more
Ans. 
Calculate the sum of proper divisors of a given natural number.
• Iterate from 1 to sqrt(N) and check for divisors

• If a divisor is found, add it to the sum and also add N/divisor if it is not the same as divisor

• Return the sum as the result
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Round duration - 45 Minutes
Round difficulty - Medium

Technical interview

Q1. 
Rearrange Array to Form Largest Number
Given an array ARR consisting of non-negative integers, rearrange the numbers to form the largest possible number. The digits within each number cannot be changed.
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Ans. 
Rearrange the array elements to form the largest possible number by concatenating them.
• Sort the array elements in a custom comparator function to get the largest number.

• Convert the sorted array elements to strings and concatenate them to form the final number.

• Handle cases where the numbers have the same prefix by comparing the concatenated forms.
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Round 1 is quit easy , only verbal ability is little bit difficult. So anyone can easy to qualify round.

Q1. Round 2 is also easy. They will about your self, 2-3 basic technical questions and about project that you have done previously.
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Q1. Round 3 is basically non- eliminating round.They will ask basic questions just like your job preferance, ambitions etc.
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