贪心算法应用，输入货物数目，价值，重量，背包负重，输出最佳装货方式。找零钱，输入商品件数，价格，顾客给的钱，给出要找的钱及各面值的数目-Greedy algorithm is applied, enter the number of goods, value, weight, backpack weight, and output the best loading method. Looking for change, enter the number of goods, prices, cus