生成圖和圖的寬度優先遍歷和深度優先遍歷

一個圖有邊和結點，邊包含權重、入結點和出結點，結點包含值、入度、出度、next結點集、和邊的集合。能夠用如下代碼表示：java public class Edge { public int weight; public Node from; public Node to; public Edge(int weight, Node from, Node to) { this.weig

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