[C++] 백준 1110번 - 더하기 사이클

#include <iostream>
using namespace std;

int main() {

	ios::sync_with_stdio(false);
	cin.tie(0);

	int number, result;
	int x, y, z, w;
	int count = 0;

	cin >> number;
	result = number;

	while (true) {
		x = number / 10;
		y = number % 10;
		z = (x + y) % 10;
		w = (y * 10) + z;
		number = w;
		count++;

		if (w == result)
			break;
	}

	cout << count << "\n";

	return 0;
}