一个二维数组，模板写的，内存连续，可以通过计算内存得到正确的数据，元素类型为T-a two-dimensional array, templates written in the continuous memory, memory can be correctly calculated data, elements of type T

极大熵聚类算法的C++实现，输入为二维矩阵，修改宏定义可实现多维-Maximum Entropy Clustering Algorithm C++ implementation, the input for the two-dimensional matrix, can be modified to achieve multi-dimensional macro definition

实现输入N个数字，N个数字全排列输出 并存放到二维数组中。(Achieve input N numbers, N numbers, all arranged output, and stored in a two-dimensional array.)