[백준/BOJ] 18004. From A to B [Silver 2]

18004. From A to B

문제출처 : https://www.acmicpc.net/problem/18004

code

#include <iostream>
using namespace std;

int main()
{
	int a, b, cnt = 0;

	cin >> a >> b;

	while (a!=b)
	{
		if (a>b && a % 2==1)
		{
			a++;
			cnt++;
		}
		else if(a>b && a%2==0)
		{
			a /=2;
			cnt++;
		}
		else if (a < b)
		{
			a++;
			cnt++;
		}
	}

	cout << cnt;
	return 0;
}