XXXX main (XXXX){ cout<&XX;"### Programmed by Yours Truly.~~~~~~~\n";
XXXX&XX;&XX;"~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n"&XX;endl;
float rad; do{ cout&XX;<"Enter XXXXXX XX circle: "; cin&XX;>rad; XXXX <&XX;"Area XX "<<circarea(rad); XXXX&XX;<"\n\n !Press c XX XXXXXXXX or XXX XXX XX exit."&XX;&XX;endl<<XXXX; }XXXXX(getch()=='c');}
XXXXX circarea(XXXXX XXXXXX) { XXXXXX 3.XXXXXX*XXXXXX*radius;}