我有一个家庭作业要求我做以下事情:DesignatemplateclassnamedFlexArraywhichoffersflexiblearrayindexes.Theuseroftheclasscansetthelowerindexandupperindexwhentheobjectisdeclared.Examplesofusercode:FlexArraya(1,5);//lowerindexis1andtheupperindexis5FlexArrayb(-5,10);//lowerindexis-5andtheupperindexis10Providethefollowi