/* struct TreeNode { int val; struct TreeNode *left; struct TreeNode *right; TreeNode(int x) : val(x), left(NULL), right(NULL) { } };*/ class Solution { public: TreeNode* Convert(TreeNode* pRootOfTree) { TreeNode* prev = nullptr; //中序遍历 InOrder(pRootOfTree, prev); TreeNode* head = pRootOfTree; //搜索二...