프로그래머스-올바른괄호

class Solution {
    boolean solution(String s) {
        boolean answer = true;
        int left=0;
        int right=0;
        for(int i=0; i<s.length(); i++){
            if(s.charAt(i)=='(') right++;
            else left++;
            
            if(left>right) return false;
        }
        if(left==right) return true;
        else return false;
    }   
}