help me with this code Cpp

use indents and the code brackets.

I keep getting this error ::

error: expected unqualified-id before ‘{’ token

I have change it to "{;" but it gives me a different error

>>59867167
>int main(void);
>;

error: expected unqualified-id before string constant
"}"

>>59867196
like this

#include <iostream>
using namespace std;

int main(void);;
{
int age = 42;
switch (age) {
case 16:
cout << "Too Young";
break;
case 42:
cout << "Adult";
break;
case 70:
cout << "Senior";
break;
}
return 0;
}

>>59867213

Dont put ";" after main

>>59867167
what resource are you using to learn ? I'm also interested in learning.

>>59867546
Thank you so much!

>>59867623
It's an android app called Sololearn Cpp

>>59867677
That's actually a decent app. I used that to refresh my mind before college