Can someone help me with this question ?? It’s in C++

Question

given a string convert it to upper case using pointer notation
char s[200];
char *sp=s;
cin>>s; //or cin>>sp;
for(;*sp;sp++){
if(*sp>='a'&& *sp<='z')
*sp-=32;
}
cout<<s; //or sp=s; cout<<sp;
//what is the output of the following?
cout<<sp-s; //the length of the string

copy char array to another char array ???
How can I do the copying ??

Answer 1

for(i=0; i<sp-s;i++)
s1[i] = s[i];

s1[i]='\0';
cout<<s1;
Declare I first. Is this what you looking..?