[Level 2] 예상 대진표

class Solution {
    public int solution(int n, int a, int b) {
        int answer = 1;
        int x = Math.min(a,b);
        int y = Math.max(a,b);

        for(int i=1; i<=20; i++) {
            if(y%2==0 && y-x==1) { break; }
            
            x = (x+1)/2;
            y = (y+1)/2;
            answer++;
        }
        
        return answer;
    }
}