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

统计文本中的单词个数，并按出现次数降序输出（支持大文本）,原版是http://www.oschina.net/code/snippet_176897_7944。采用hash_map,GCC采用#include <ext/hash_map>。修改版本是VS2010采用#include <hash_map>using namespace stdext VC调用hash_map的例子，值得学习。-The number of words in the statistics tex