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                ??碼云GVP開源項目 12k star Uniapp+ElementUI 功能強大 支持多語言、二開方便! 廣告
                # 樹的遍歷 ## 數據結構 ```C++ struct node{ typename data; int child[maxn]; // vector<int> child; }Node[maxn]; ``` ```C++ // 新建 int index=0; int newNode(int v){ Node[index].data=v; Node[index].child.clear(); return index++; // 返回結點下標 } ``` ## 樹的遍歷 ### 先序遍歷 ```C++ void preOrder(int root){ printf("%d",Node[root].data); for(int i=0;i<Node[root].child.size();i++){ preOder(Node[root].child[i]); } } ``` ### 層序遍歷 ```C++ void layerOrder(int root){ queue<int> q; q.push(root); while(!q.empty()){ int front=q.front(); printf("%d",Node[front].data); q.pop(); for(int i=0;i<Node[front].child.size();i++){ q.push(Node[front].child[i]); } } } ``` ?
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