Program strlwr strupr

#include <iostream.h>
#include <conio.h>
#include <string.h>

//void main
int main()
{
char string1[30] = "aBcDefgHiJKLmno";
strupr(string1); //nilai string1
cout<<string1<<endl;
strlwr(string1);
cout<<string1<<endl;
getch();
}