min-cost-assumes-length-ge-2

Status: IN

`minCostClimbingStairs` will raise `IndexError` if `cost` has fewer than 2 elements; it relies on the LeetCode constraint `len(cost) >= 2` without validation.

Source: entries/2026/06/06/min-cost-climbing-stairs-solution.md

Depended on by

• dp-rolling-reduction-correct-unless-degenerate-input

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