Interview Questions

Katie O. - "When originally trying to launch XYZ product, a stakeholder wanted to rollout an additional requirement for agents that would have been redundant. I provided light pushback and context regarding the scale of the lift and technical resources required to initiate their request. Once I described the complexity of their request & potential strain on resources, we agreed to brainstorm alternative solutions. I collaborated with cross-functional teams to create an automated solution, leading to XYZ% in"See full answer

Anonymous Firefly - "def findmaxone_index(A):    i = 0    n = len(A)    count_left = 0    count_right = 0    max_i = -1    last_i = -1    count_max = 0    while i count_max:                countmax = countleft + count_right + 1                maxi = lasti             last_i = i             countleft = countright             count_right = 0       i += 1    if last_i != -1: "See full answer

Anonymous Eel - "String commonStr(String str1, String str2) { int len1 = str1.length(); int len2 = str2.length(); if (len1 == 0 || len2 == 0) return ""; // let dpx reprsent the longest common str of 0...x int dp = new int len1 + 1; int maxLen = 0; int endIndex = 0; for (int i = 1; i <= len1; i++) { for (int j = 1; j <= len2; j++) { if (str1.charAt(i-1) == str2.charAt(j-1)) { dpi = dpi-1 + 1; "See full answer

Sam A. - "The distribution of daily search queries per user, as shown in the histogram, can be described as approximately normal (or bell-shaped) with a slight positive skew. Key Characteristics: Shape: The distribution is roughly symmetrical around its center, resembling a bell curve. This indicates that most users perform a moderate number of daily search queries. Central Tendency: The peak of the distribution, representing the highest density of users, appears to be around **8"See full answer

Kiran R. - "Automated Reimbursement System 1. Clarifying Questions Scope: Will the system be applicable to all employees or only specific grades/levels? Ownership: Are we building this product internally for our own use, or is it intended for external/outsourced usage? MVP Requirements: Besides automation, what additional features or problem statements should the Minimum Viable Product (MVP) address? 2. User Segmentation Commute Expenses: e.g., m"See full answer

Exponent - "This is a Strategy Question, which asks you to justify high-level business decisions and strategy. There's no set formula, but we recommend proposing at least three different reasons to answer the question. Let's go over one possible solution: > For sure, I definitely think that Facebook has opportunities to look into autonomous vehicles. I know it's becoming quite saturated, but an acquisition of one of the incumbents can prove worthwhile. Firstly, Facebook can use it's world class AI and a"See full answer

Exponent - "This is a Fermi problem — an estimation or approximation problem with limited information and back-of-the-envelope calculations. There's no right answer: interviewers want to understand how you think and how well you can explain your reasoning, rather than what you already know. Recall the formula for Fermi problems: Ask clarifying questions Catalog what you know Make equation(s) Think about edge cases to add to equation **Breakdown components of your equat"See full answer

Yuexiang Y. - "clarify: so does the 5% drop a sudden drop or overtime in the one week does it broadly drop 5% or it dropped only in some regions or in some segments like new acqusition / frequent active customers? or does the 5% drop also happened last year same period? DAU = acqusition x activation x retention segment: I will first quickly do some EDA to find out problem, like calculate the DAU drop in new customer, tenured customer, between regions to find out is there any difference. then I will also look"See full answer

Mridul J. - "Interviewer wanted to learn more about architecture and or scalability. But I was not sure what the expected answer was"See full answer

Chris R. - "It was like say we have a library A which has a library B as a dependency and so on, how would we determine in the dependency chain that whether there is a circular depedency?"See full answer