Como se preparar para entrevistas na Datadog

+15

Tell me about a time you had a conflict with a coworker. How did you resolve it?

+14

What project are you most proud of?

+7

Give me an example of a tough or critical piece of feedback you received.

+6

Tell me about a conflict you had at work.

The interviewer focused on a conflict that comes from different perspectives or ideas on how to execute a certain task.

+4

What was a situation where you didn't agree with your manager or superior's decision?

+4

Describe a time you failed and how you managed the situation

+1

Leetcode 124. Binary Tree Maximum Path Sum

Find the maximum sum of any non-empty connected path in a binary tree (nodes used at most once), where the path can start and end at any nodes and node values may be negative. You must account for single-node paths when all values are negative.

Design YouTube

Design a video streaming platform like YouTube where creators can upload and share videos, viewers can stream content on-demand, and users receive personalized recommendations based on their viewing history and preferences.

Leetcode 568. Maximum Vacation Days

Given a flights graph and a matrix of vacation days per city per week, start at city 0 and choose each week whether to stay or fly along allowed edges to maximize total vacation days over K weeks. The core challenge is a DP/state-search over (city, week) states with transitions constrained by the flight graph and time steps to accumulate the optimal sum.

Leetcode 388. Longest Absolute File Path

Given a string using '\n' and '\t' to represent a nested filesystem, compute the length of the longest absolute path to any file. The core challenge is parsing each line to determine its depth from leading tabs and maintaining cumulative path lengths by depth (e.g., with a stack/array) to update the maximum when a file is encountered.

Leetcode 819. Most Common Word

Normalize the paragraph to lowercase and ignore punctuation, count the frequency of each word while skipping any banned words, and return the most frequent non-banned word.

Design a Discounted Flight Alert System

Design a flight price monitoring system that allows users to subscribe to specific routes and receive email notifications within 10 minutes when flight prices drop significantly below historical averages. The system should integrate with external flight APIs, handle API failures gracefully, deduplicate notifications, and scale to support many users and routes.

Design a personal finance tracker

Design a cloud-based personal finance tracker that allows users to connect their bank accounts, automatically categorize transactions into expense types (food, rent, transport, etc.), and view analytics and insights about their spending habits.