Method push

src/class191/Code01_CutEdge1.java:40–46

(int u, int preEdge, int status, int e)

	public static int stacksize;

	public static void push(int u, int preEdge, int status, int e) {
		stack[stacksize][0] = u;
		stack[stacksize][1] = preEdge;
		stack[stacksize][2] = status;
		stack[stacksize][3] = e;
		stacksize++;
	}

	public static void pop() {
		stacksize--;