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23/09/Q1123.h

@@ -0,0 +1,34 @@
+//
+// Created by 李洋 on 2023/9/6.
+//
+
+#ifndef LEECODE_C_Q1123_H
+#define LEECODE_C_Q1123_H
+#pragma once
+
+#include "../../dataStruct/Tree/TreeStack.h"
+
+std::pair<TreeNode *, int> f(TreeNode *root) {
+    if (!root) {
+        return {root, 0};
+    }
+
+    auto left = f(root->left);
+    auto right = f(root->right);
+
+    if (left.second > right.second) {
+        return {left.first, left.second + 1};
+    }
+    if (left.second < right.second) {
+        return {right.first, right.second + 1};
+    }
+    return {root, left.second + 1};
+
+}
+
+struct TreeNode *lcaDeepestLeaves(struct TreeNode *root) {
+    return f(root).first;
+}
+
+
+#endif //LEECODE_C_Q1123_H