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📜 WAYPOINT LESSON

Checkpoint — Defend the Baseline

⭐⭐⭐ advanced⏳ 25 min read📍 Lesson 209 of 281

Kadane under adversarial cases: all-negative input, int overflow, and the dp[0] habit. The pipeline's verification pass is the graded skill.

Checkpoint — Defend the Baseline. The task is famous; the grading is not. The full-scale tests embed exactly the cases the verification checklist names: an all-negative array (where dp[0] = 0 fails silently), a tie-and-split case, and an overflow probe. If your first instinct is "I know Kadane", run the checklist anyway — that habit IS the course.