[프로그래머스] 예상 대진표

#include <iostream>

using namespace std;

int solution(int n, int a, int b)
{
    int answer = 0;
    while(true){
        answer ++;
        if(a%2 ==0 )
            a = a/2;
        
        else
            a = a/2 + 1;
        if(b%2 == 0)
            b = b/2;
        else 
           b = b/2 + 1;
        if(a == b)
            break;
    }
    return answer;
}