此程序用于检测两个vector量有没有相同的片段，例如一个Vector是 ABBC 第二个ABC，此程序可以检测初有无BC 或者有无AB并由此可以随意检测内容并且返回相应的数值。-This assignment asks students to write a program to search a character sequence pointed by a pointer in another character sequence. The namely for them namely a