Day 1: Baseline and arrays

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Week 1 Context

4 remaining

Coding hash map

LC 1, 15. Speak the approach first. Name the pattern, complexity, and how you skip duplicates before writing code.

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Coding kadane

LC 53. Cover all-negative arrays, single-element, and the reset-vs-carry decision out loud.

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System design load balancing

When each applies, TLS termination, sticky sessions, and what high-scale traffic actually needs.

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System design load balancing

Round-robin vs least-connections vs IP-hash. Name failure modes and when sticky routing is required.

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