Warner Bros Discovery Interview Questions
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Warner Bros Discovery
Medium
Software EngineerDesign an ad content delivery system with A/B testing
Design an ad content delivery (ad serving) system that selects and serves ads to users, and supports A/B testing / experimentation. Core scenario A cl...
System Design
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Nov 15, 2025
Warner Bros Discovery
Medium
Software EngineerImplement array rotations and CSV keyword search
Problem A — Rotate an array left/right by k You are given an integer array nums of length n and an integer k. 1. Implement rotateLeft(nums, k) that re...
Coding & Algorithms
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Nov 15, 2025