C++ writing style

When writing code (in C++ particularly), where do you put your curly braces?

ex:
int main()
{

}

OR...

int main(){

}

which do you think is better? clearer? more professional?


#include <lolnoob>

int main() {
    if(1) {
        printf("All the way to schfifty-five.\n");
    } else {
        printf("It's perfect K&R, except there's no space between control structures and the following parenthesis.\n");
        printf("This is my Achilles heel.\n");
    }
}