Como se preparar para entrevistas na Pinterest

+15

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

+5

Design a Rate Limiter

Design a rate limiting system that can control and throttle API requests to prevent system overload and ensure fair resource allocation. The system should be able to handle distributed scenarios, track requests across multiple servers, and enforce limits per user/client or between internal services to prevent abuse and maintain system performance.

+3

Design DropBox

Design a file storage and synchronization system like Dropbox that allows users to upload, download, and sync files across multiple devices with real-time updates.

+1

Describe a challenging situation where a project or initiative under your leadership wasn't going as planned and how you persevered to overcome the situation.

Leetcode 450. Delete Node in a BST

Delete the node with a given key from a BST while preserving BST order: search down O(height) to find the node and then handle the three cases (no child, one child, or two children — replace with inorder successor/predecessor) to return the updated root.

Leetcode 332. Reconstruct Itinerary

Given a list of directed flight tickets, reconstruct an itinerary starting at "JFK" that uses every ticket exactly once and, among all valid itineraries, returns the lexicographically smallest sequence. The core challenge is finding an Eulerian path in a directed graph while prioritizing lexicographically smaller outgoing destinations.

Leetcode 518. Coin Change II

Given unlimited coins of specified denominations, count how many distinct combinations (order irrelevant) sum to a target amount. This is a classic unbounded knapsack / DP counting problem to compute the number of ways to make the amount.