参考算法导论写的LCS算法，仿照STL的泛型风格，适用于多种STL容器中的各种类型数据构成的序列的最大公共子序列（Longest Common Subsequence）问题求解。-reference Introduction to write the algorithm LCS algorithm, modeled on the STL Generic style. STL is applicable to many types of containers data constitute the largest sequence of public sequences (Longest C ommon Subsequence) problem to solve.