编辑代码

#include <iostream>
using namespace std;
struct Commodity {
    string commodityname;
    int weight;
    int price;
    Commodity* next;

    Commodity(string n, int w, int p) {
  
        weight = w;
        price = p;
        commodityname = n;
        next = NULL;
    }

    Commodity() {
       
        weight = 0;
        price = 0;
        commodityname = "";
        next = NULL;
    }

    Commodity(Commodity* commodity) {
       
        weight = commodity->weight;
        price = commodity->price;
        commodityname = commodity->commodityname;
        next = commodity->next;
    }
};

struct SELECT {
    int sum;
    Commodity* head;
    SELECT() {
        sum = 0;
        head = new Commodity();
    }

    SELECT(SELECT* select) {
        sum = select->sum;
        head = new Commodity();
        head->next = select->head->next;
    }
};

SELECT* fun( Commodity* commodity, int CommodityCount,int capacity) {

    int minweight = commodity[0].weight;
    for (int i = 1; i < CommodityCount; i++)
    {
        int curweight = commodity[i].weight;
        if (curweight < minweight) {
            minweight = curweight;
        }
    }
    if (capacity < minweight) {
       
        return NULL;
    }
    SELECT** Array = new SELECT * [CommodityCount]();
    int weightcount = capacity + 1;
    for (int i = 0; i < CommodityCount; i++) {
        Array[i] = new SELECT[weightcount]();
    }

    for (int i = 0; i < CommodityCount; i++)
    {

        int curWeight = commodity[i].weight;
        int curValue = commodity[i].price;
        for (int weight = minweight; weight < weightcount; weight++)
        {
            int prevalue = 0; 
            int curvalue = 0;
            if (i > 0) {
                prevalue = Array[i - 1][weight].sum;
            }

           
            if (weight >= curWeight) {
                curvalue = curValue;
            }

            if (i > 0 && weight > curWeight) {
                curvalue=curvalue+ Array[i - 1][weight - curWeight].sum;
                Array[i][weight].head->next = Array[i - 1][weight - curWeight].head->next;
            }

            int maxvalue = prevalue;

            if (maxvalue < curvalue) {
                maxvalue = curvalue;
                commodity[i].next = Array[i][weight].head->next;
                Array[i][weight].head->next = new Commodity(&commodity[i]);
            }
            else {
                Array[i][weight].head->next = Array[i - 1][weight].head->next;
            }
            Array[i][weight].sum = maxvalue;

        }
    }
    SELECT* select = new SELECT(&Array[CommodityCount - 1][weightcount - 1]);
    return select;
}
void PrintF(SELECT*select)
{
    if (select->sum > 0)
    {
       
        Commodity* commodity = select->head->next;
        Commodity* prev = NULL;
        cout << "选择盗窃物品为";
        while (commodity != NULL) {
            cout << commodity->commodityname << ", ";
            prev = commodity;
            commodity = commodity->next;
            delete prev;
        }
        cout << "最大价值为 " << select->sum << endl;
        cout << endl;
    }
}

int main() {
    cout << "例1：" << endl;
    int capacity = 4;
    Commodity commoditys1[] = {
        Commodity("Guitar", 1, 1500),
        Commodity("Sound Equipment", 4, 3000),
        Commodity("Notebook", 3, 2000),
        Commodity("HUAWEI", 1, 6000)
    };
    int commodityCount = sizeof(commoditys1) / sizeof(Commodity);
    SELECT* select1 = NULL;

    select1 = fun(commoditys1, commodityCount,capacity);
    PrintF(select1);
     cout << "例2：" << endl;
   capacity = 3;
    Commodity commoditys2[] = {
        Commodity("Guitar", 1, 1500),
        Commodity("Sound Equipment", 3, 3000),
        Commodity("Notebook", 3, 2000),
        Commodity("HUAWEI", 2, 6000)
    };
  commodityCount = sizeof(commoditys2) / sizeof(Commodity);
    SELECT* select2 = NULL;

    select2 = fun(commoditys2, commodityCount,capacity);
    PrintF(select2);
    cout << "例3：" << endl;
    capacity = 5;
    Commodity commoditys3[] = {
        Commodity("Guitar", 1, 1500),
        Commodity("Sound Equipment", 3, 3000),
        Commodity("Notebook", 3, 2000),
        Commodity("HUAWEI", 2, 6000)
    };
    commodityCount = sizeof(commoditys3) / sizeof(Commodity);
    SELECT* select3 = NULL;

    select3 = fun(commoditys3, commodityCount, capacity);
    PrintF(select3);

   

  
}