解决二维装箱问题的一段C++源代码。将容积不同的N种物品装入容积为V的箱子内。求解所使用的最少箱子数和箱子内部所装的物品编号。-To resolve the issue of two-dimensional packing section C++ Source code. The volume of different kinds of items N load volume V of the box. Used to solve at least a few boxes and boxes o