Method main

src/class143/Code01_Elevator.java:107–121

(String[] args)

	}

	public static void main(String[] args) throws IOException {
		Kattio io = new Kattio();
		h = io.nextLong() - 1;
		x = io.nextInt();
		y = io.nextInt();
		z = io.nextInt();
		prepare();
		for (int i = 0; i < x; i++) {
			addEdge(i, (i + y) % x, y);
			addEdge(i, (i + z) % x, z);
		}
		io.println(compute());
		io.flush();
		io.close();
	}

	// Kattio类IO效率很好，但还是不如StreamTokenizer
	// 只有StreamTokenizer无法正确处理时，才考虑使用这个类