The process took 3 weeks. I interviewed at Amazon in Feb 2011
Interview
2 phone Interviews and 1 face to face interview. Interview questions.
What is recall is this
Quickest way to find missing number and missing slot in array of 100 elements
Iterate through the array and compute the sum of all numbers. Now, sum of natural numbers from 1 to N, can be expressed as Nx(N+1)/2. N=100.
Subtract the sum of the array from Nx(N+1)/2, where N=100.
That is the missing number. The empty slot can be detected during the iteration in which the sum is computed.
// will be the sum of the numbers in the array.
int sum = 0;
int idx = -1;
for (int i = 0; i < arr.length; i++) {
if (arr[i] == 0) {
idx = i;
} else {
sum += arr[i];
}
}
// the total sum of numbers between 1 and arr.length.
int total = (arr.length + 1) * arr.length / 2;
System.out.println("missing number is: " + (total - sum) + " at index " + idx);
Straightforward interview process with clear communication. The interviewers asked about my background, relevant experience, technical skills, and how I would handle common workplace situations. Overall, it felt professional and organized.
Interview questions [1]
Question 1
They asked me to walk through my previous experience and explain how it related to the responsibilities of the role.
OA contained 2 coding questions and then followed by a multiple choice question on behavioral where they emphasized a lot on their leadership rules which you can find on their website
Interview questions [1]
Question 1
What is customer obsession and how do you apply it
Could not use AI during the first interview. The recruiter was helpful in the screener but the coding exam was tough including the take home test. Did a few Leetcode examples but apparently that wasn't enough.
