twointsclass * main_source(twointsclass * data);void main(){twointsclass * data;data=NULL;data=main_source(data);delete [] data;}twointsclass * main_source(twointsclass * data){data=new twointsclass[100];delete [] data;return data;}
static void main(){twointsclass * data;data=NULL;data=main_source(data);delete [] data;}twointsclass * main_source(twointsclass * data){data=new twointsclass[100];return data;}