说明：  算法：（用c++编写）设计一个算法求出全部的LCS，分析最坏情况。用”会计方法”证明,利用b[i,j]来求所有LCS的算法（在VS2008平台上）
(Algorithm: (written with c++) design an algorithm find all of the LCS, the worst-case analysis. With the " accounting method" to prove the use of b [i, j] to seek all the LCS algorithm (in VS2008 platform))