نمایش نمره با ساختار Switch و IF

#include<iostream.h> #include<conio.h> main() { while(1) { int a; cout<<"Enter The Score: "; cin>>a; if((a<0)||(a>100))cout<<"The Score Is Out Of Range !"<<endl; else switch(a/10) { case 10: case 9:cout<<"A"<<endl;break; case 8:cout<<"B"<<endl;break; case 7:cout<<"C"<<endl;break; case 6:cout<<"D"<<endl;break; case 5:cout<<"E"<<endl;break; case 4: case 3: case 2: case 1: case 0:cout<<"F"<<endl;break; } } getch(); return 0; }