Concepts2
⚙️AlgorithmIntermediate
Exchange Arguments in DP
An exchange argument proves that any optimal solution can be reordered to satisfy a simple sorting rule by showing that swapping adjacent out-of-order elements never helps.
#exchange argument#adjacent swap#smith rule+12
⚙️AlgorithmIntermediate
Greedy - Exchange Argument
The exchange argument proves a greedy algorithm is optimal by swapping out-of-order choices in any supposed optimal solution until it matches the greedy one without making it worse.
#greedy#exchange argument#pairwise swap+12