Membuat Huruf Kapital

#include
#include
#include
#include
int b,c;
char a[100];
void main()
{
cout<<"Masukkan Kalimat = ";
cin.getline(a,sizeof(a));
b = strlen(a);
for (c=1;c<=b;c++)
a[c-1] = toupper(a[c-1]);
cout<<"Kalimat yang anda masukkan : " << a;
}