Answer 1

Yes

Answer 2

Yes you can. Use this function.

int max(int a,int b,int c) {
if(a>b) {
if(a>c)
return a;
else
return c;
} else {
if(b>c)
return b;
else
return c;
}
}

Answer 3

Yes we can do. If u want i can give a try

Answer 4

yes