计算机算法中著名的0_1背包问题：给定n种物品和一背包。物品i的重量是Wi，其价值为Vi，背包的容量是c，问应如何选择装入背包中的物品，使得装入背包中物品的总价值最大。-computer algorithm famous 0_1 knapsack problem : given n product and a backpack. I articles of the weight of Wi, the value of Vi and backpack is the capacity c, asked how to choose a backpack loaded the items, make backpack loaded with a total value of the largest.