import java.util.ArrayList;

public class StoreManager
{
    /**
     * returns the name of an item whose unit price is the lowest
     * in the specified category; if no items in the specified
     * category, returns "none"
     */
    
    public String minUnitPrice(GroceryStore store, String category)
    {
	ArrayList list = store.getAllItems(category);
	if (list.size() == 0) {
	    return "none";
	}
	GroceryItem minItem = (GroceryItem) list.get(0);
	
	for(int k=1; k < list.size(); k++) {
	    GroceryItem current = (GroceryItem) list.get(k);
	    if (current.getPrice()/current.getSize() <
		minItem.getPrice()/minItem.getSize()) {
		minItem = current;
	    }
	}
	return minItem.getName();
    }
}