Most common AMAZON coding interview questions

Are you preparing to apply for a job at Amazon?

Well, here is a guide to help you prepare for the interviews!

While applying for any job, it is important to go through and practice. Coding questions are a vital part of an interview for programmers. Hence, it is important to practice as many coding questions as possible. Especially when a candidate is applying for a company like Amazon, it becomes even more important to perform well in the practical coding part.

What are the coding questions? Coding questions are among the most popular interview questions that are asked in various multinational agencies, including Amazon. These questions are prepared to test the ability and aptitude of candidates that sign up for job roles that demand coding requirements.

Why are coding questions asked by Amazon? The corporate giant Amazon conducts a round which is primarily for coding related questions. Every candidate is asked 2-3 different types of coding questions which are based around algorithms and data structure. It is primarily conducted to determine the decision making and problem solving ability of the candidates concerned.

Preparing for the coding questions therefore, hold a lot of significance. Hence, to help you with your preparations for amazon coding round questions, we will be talking about the 15 most commonly asked questions. We will also take a look at how you can prepare for these questions.

Common Amazon coding interview questions:

What is the concept of linked lists? Merge the given sorted links in a way that the resulting link is also sorted. In the given string, find the substring which is the longest and has no repeated characters. If you are given a set of ‘N’ elements, what is the procedure for finding the Kth permutation? You are given an array of points that are in the 2D plane. Identify ‘K’ points that are closest to the origin. Perform the process of converting a Binary tree to a DLL. Find the maximum subsequence sum from the array provided in a way that the subsequence is sorted in increasing order. If you are given a number N and a bit number K, how will you determine if the Kth term is set or not? You are given an infinite supply of the Indian currency in every existing denomination ranging from 1 to 2000. You are also given N as your target value. How will you find the minimum coins and notes which will be required to achieve the said amount of Rs. N? Also mention the value of the coins required in the returned list. For a given value N, print all the braces combinations so that they are balanced. Write a code for making a deep copy of the linked list provided. Note that no operations mentioned in the original list should affect the copied list. You are given a set of dictionary words. Can a given input string be segmented into the given dictionary words completely? Find all the subsets that are possible for a given set of integers. Let us say you are given 2 numbers ‘X’ and ‘Y’. What is the procedure to find the largest number possible with the ‘Y’ digits and the sum of its digits is equal to ‘S.’ You have been given two strings ‘A’ and ‘B’ which have a length of ‘P’ and ‘Q’ respectively. Your task is to find the length of the smallest possible string whose sub-sequences include both, A and B. You are given a nonnegative integer X. You have to determine whether X is a power of 2.

Now that we have seen the questions, let us look at some tips to help you answer the questions perfectly and within the given time frame.

Tips for answering amazon interview questions. There is a lot to be taken care of when we talk about interviewing at such prestigious organizations. Just being theoretically informed will not be enough.

Hence, to help you in this preparation, here are 5 tips regarding interviews:

Practice tests: You will need to be quick yet perfect in your judgment regarding the coding problems given to you. To improve your performance time and efficacy, you can practice with mock interviews or the striver DSA sheet. A DSA sheet is a set of questions designed to help you practice your coding skills. It is recommended that you solve as many of these DSA sheets as possible and improve your solving time accordingly.

Stay aware and informed: Considering the fast-pacing technological advancements, you as a programmer need to be well aware of them. Incorporate as much of your knowledge of the industry as you can in your answers. Let them know that not only are you excellent in programming, but you are also interested and informed enough to know so much about these advancements.

Stay confident and real: Consider the interviews to be your only chance of proving your communication and leadership skills. The way you answer their questions verbally and non-verbally says a lot about you. Be confident but do not let your confidence sound like arrogance.

Keep it real when it comes to your weaknesses. Do not give answers that are not genuine because the interviewers will know since they are very experienced. Try to balance it in a way that your weakness will not be seen as a hindrance to your performance.

Listen actively: Do not be a passive listener in any interview. You do not want to be seen as uninterested or clueless. Participate as much as you can but make sure you are not interrupting anyone. Listen to the instructions being given and ask questions when you can. Before solving the question, it is very important to first listen to what needs to be done to perform well.

Do not hurry: Remember, the goal is to solve the problems accurately and within the time that has been allotted to you and everyone else as well. Take your time to understand the questions first. Do not hurry and solve the question incorrectly. It is not about your speed alone; accuracy matters even more. Do not hastily start solving before contemplating and listening to the instructions.

Conclusion: These were a few tips regarding the amazon coding round questions. Keep in mind that these tips will only work if you have a strong base of appropriate theoretical and practical knowledge. Hence, it is recommended that you solve the striver DSA sheet along with any other DSA sheets that you prefer.