Method addEdge

src/class195/Code02_Journeys1.java:40–45

(int u, int v, int w)

	public static ArrayDeque<Integer> deq = new ArrayDeque<>();

	public static void addEdge(int u, int v, int w) {
		nxt[++cntg] = head[u];
		to[cntg] = v;
		weight[cntg] = w;
		head[u] = cntg;
	}

	public static int buildOut(int l, int r) {
		int rt;