init

else/structs/Tree.h

@@ -0,0 +1,94 @@
+//
+// Created by 李洋 on 2023/8/14.
+//
+
+#ifndef LEECODE_C_TREE_H
+#define LEECODE_C_TREE_H
+
+struct TreeNode
+{
+    int val;
+    TreeNode *left;
+    TreeNode *right;
+
+    TreeNode() : val(0), left(nullptr), right(nullptr) {}
+
+    TreeNode(int x) : val(x), left(nullptr), right(nullptr) {}
+
+    TreeNode(int x, TreeNode *left, TreeNode *right) : val(x), left(left), right(right) {}
+};
+
+#include <iostream>
+#include <random>
+#include <queue>
+
+TreeNode *createRandomTree(int size)
+{
+    if (size == 0)
+    {
+        return nullptr;
+    }
+    std::random_device rd;
+    std::mt19937 gen(rd());
+    std::uniform_int_distribution<int> dis(1, 100);
+
+    std::queue<int> Q;
+    std::queue<TreeNode *> T;
+    for (int i = size; i > 0; --i)
+    {
+        Q.push(dis(gen));
+        std::cout << Q.back() << " ";
+    }
+    std::cout << std::endl;
+
+    TreeNode *head = new TreeNode(Q.front());
+    T.push(head);
+    Q.pop();
+
+    while (!Q.empty())
+    {
+        if (T.front()->left != nullptr && T.front()->right != nullptr)
+        {
+            T.pop();
+        }
+
+        TreeNode *temp = new TreeNode(Q.front());
+        Q.pop();
+
+        if (T.front()->left == nullptr)
+        {
+            T.front()->left = temp;
+            T.push(temp);
+            continue;
+        }
+
+        if (T.front()->right == nullptr)
+        {
+            T.front()->right = temp;
+            T.push(temp);
+        }
+    }
+    return head;
+}
+
+void lookTree(TreeNode *root)
+{
+    std::queue<TreeNode *> q;
+    q.push(root);
+    while (!q.empty())
+    {
+        TreeNode *head = q.front();
+        q.pop();
+        std::cout << head->val << " ";
+        if (head->left)
+        {
+            q.push(head->left);
+        }
+        if (head->right)
+        {
+            q.push(head->right);
+        }
+    }
+}
+
+#endif // LEECODE_C_TREE_H