Canon Software Developer Intern Interview Questions and Answers

Easy to medium questions

Q1. Create a software
Ans. 
A software for managing inventory in a retail store
• Create a user-friendly interface for adding, updating, and deleting products

• Include features for tracking sales, restocking inventory, and generating reports

• Implement barcode scanning functionality for quick product lookup
Answered by AI
Add your answer

Q1. Tell me about yourself
Add your answer

Q1. 1. Check all the permutations of palindrome in an array
Ans. 
Find all permutations of palindromes in an array of strings.
• Iterate through each string in the array.

• For each string, generate all possible permutations.

• Check if each permutation is a palindrome.

• Return the list of palindromic permutations.
Answered by AI
Add your answer
Q2. 2. Toggle a bit
Ans. 
Toggle a bit in a binary number
• Convert the number to binary representation

• Identify the bit position to toggle

• Toggle the bit using bitwise XOR operator

• Convert the modified binary number back to decimal
Answered by AI
Add your answer
Q3. 3. Swap numbers using bit operators
Ans. 
Swapping numbers using bit operators.
• Use XOR operator to swap two numbers without using a temporary variable

• XORing a number with itself results in 0

• Example: a = 5, b = 7. a ^= b; b ^= a; a ^= b; // a = 7, b = 5
Answered by AI
Add your answer

Simple DSA and CS Fundamentals

Q1. CS Fundamentals, Java, OS, DSA and Project-based questions.
Add your answer

Q1. Managerial and HR Round, basic HR questions and Situational questions by HR
Add your answer

Round duration - 45 minutes
Round difficulty - Medium

This round was scheduled in the morning hours from 10:30 to 11:15 AM. I was informed about the round 2 days earlier through an e-mail and a phone call both.

Q1. Ninja And Candies
Ninja is a boy who lives in ninjaland. Every day, during the morning he gets 1 coin from his mother. He wants to buy exactly ‘N’ candies. Each of the candies cost 2 coins usually and 1 co...read more
Ans. Using Linear Search
We will iterate over all possible days, which will be between 1 to 2*(sum of all K[i]). Let our current day be ‘currDay’. We will check if any valid distribution is possible for the current day.
If we had several days for some type of candies, let's use the last one, it is always not worse than some of the previous days. Then let's iterate over all days from 1 to ‘ansd’ and do the following: 
• Firs...read more
Answered by CodingNinjas
View 1 more answer

Round duration - 45 minutes
Round difficulty - Hard

After the first round, some candidates were shortlisted and I was one of them which was scheduled 2 days later at the same time.

Q1. Umbrella
You are given ‘N’ types of umbrellas, where each umbrella can shelter some number of people. Given the number of people each umbrella can shelter in the array “UMBRELLA”, you need to determine the...read more
Ans. Brute Force
Approach: The idea here is to try every possible option and consider the minimum ans.

 We have two possible options: either we use the i-th umbrella to cover people or not. 

So, the recurrence for the above problem is:
minNumberOfUmbrellas(i, M) = min(minNumberOfUmbrellas(i - 1, M), 1+ minNumberOfUmbrellas(i, M - UMBRELLA[i])).
 
minNumberOfUmbrellas(i, M) represents the minimum number of umbrellas...read more
Answered by CodingNinjas
View 2 more answers
Q2. Lazy Santa
It’s christmas and Santa is here with ‘K’ gifts. There are ‘N’ children in the park who are standing in a straight line, and not crowding up due to COVID restrictions. You are given an array “di...read more
Ans. Brute Force
We can note that it is always optimal to distribute gifts to ‘K’ children who are adjacent to each other. 
 
For example, if the position of children are [2, 4, 7] and K = 2, it is optimal to give gifts to children with positions 2 and 4. If the positions were to be [2, 5, 7], it is optimal to give gifts to children at positions 5 and 7. In general, if the positions are [p1, p2, p3] where p1 < p2 ...read more
Answered by CodingNinjas
Add your answer

Round duration - 30 minutes
Round difficulty - Medium

It was a simple conversation, no shortlisting was done here, all of the students who passed the previous round were offered the role.

Q1. Basic HR Questions
Who is your role model.
Tell me about yourself.
Ans. 
Tip 1 : try to be practical whenever claiming something
Tip 2 : try to be honest and disciplined with your answers
Answered by CodingNinjas
Add your answer

Fundamental output questions and aptitude assessments.

Q1. Pattern printing Delete drop truncate difference Projects discussion
Add your answer

Q1. What motivated you to choose Dell?
Ans. 
I chose Dell for their reputation for innovation, strong company culture, and opportunities for growth.
• Reputation for innovation in technology industry

• Strong company culture focused on employee development

• Opportunities for growth and advancement within the company
Answered by AI
Add your answer
Q2. Opinion about JD.
Add your answer

Round duration - 45 minutes
Round difficulty - Hard

Interview was conducted at zoom in the evening hours.

Q1. Max GCD Pair
You are given an array of positive integers. Find the GCD(Greatest Common Divisor) of a pair of elements such that it is maximum among all possible pairs. GCD(a, b) is the maximum number x suc...read more
Ans. Brute force
If a number is a divisor of two or more elements then it can be the GCD of the pair formed using those elements.
 
In this method, we will iterate over all the elements in the array and find the divisors of every element. We will also maintain a count array where the index represents the divisor and the value at that index is the number of elements in the given array having this as a divisor.
 
After t...read more
Answered by CodingNinjas
View 1 more answer
Q2. Kevin and his Fruits
Kevin has ‘N’ buckets each consisting of some fruits. Kevin wants to eat at least ‘M’ fruits and so, he decided to set a marker (integer) as maximum as possible such that if he eats “n...read more
Ans. Brute Force
First, we should know that the marker can’t be negative and also it will not be greater than the maximum number of fruits in a particular bucket because if this happens then Kevin are not able to eat any of these fruits.
 
 Therefore, the marker must be in the range of 0 to a maximum number of fruits in a particular bucket. So, the idea is to first calculate the maximum number of fruits in any partic...read more
Answered by CodingNinjas
View 1 more answer

Round duration - 30 minutes
Round difficulty - Medium

This round was scheduled in the morning hours from 10:30 to 11 am. The interviewer was cool-minded and I really enjoyed talking to him.

Q1. Basic Questions
What is expectation from this job?
What are your hobbies?
Some puzzles.
Ans. 
his puzzle usually seems like a tough one to answer, but solving it once makes one realize that the procedure was actually simple. If the candidate pulls out 2 red balls, he replaces them with a blue ball.
On the other hand, if he draws one red and one blue, it is replaced with a red one. This implies that the red ball would always be in odd numbers, whether the candidate removes 2 together, or removes 1 while adding 1....read more
Answered by CodingNinjas
Add your answer