Ternary operator ?: vs if...else
Solution 1:
It is not faster. There is one difference when you can initialize a constant variable depending on some expression:
const int x = (a<b) ? b : a;
You can't do the same with if-else.
Solution 2:
Depends on your compiler, but on any modern compiler there is generally no difference. It's something you shouldn't worry about. Concentrate on the maintainability of your code.