mediumCodingConceptMidSeniorStaff
How do you know a greedy choice is safe and not merely plausible?
4 min readUpdated 2026-08-15
Answer
Short answer
A greedy choice is safe when you can show at least one optimal solution contains it, usually via an exchange argument that swaps an optimum's first choice for yours without losing anything.
Mention exchange argument where it changes the risk, the owner, or the next check.
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