Fofoaliii

Quation 1:

answer of # 1 :
struct point {float x ; float y ; };


answer of # 2 :
typdef struct {int x ; int y ; }point ;


answer of # 3 :
struct point {int x; int y }p;
struct point parr [10] ;


answer of # 4 :
struct point {int x; int y };
struct point parr [10] ;


answer of # 5 :

enum OsType {osandroid , oswindows , orios};