serde.cpp

#include <iostream>
#include <string>


 struct TreeNode {
     int val;
     TreeNode *left;
     TreeNode *right;
     TreeNode(int x) : val(x), left(NULL), right(NULL) {}
 };

class Codec {
public:

    // Encodes a tree to a single string.
    std::string serialize(TreeNode* root) {

        return "";
    }

    // Decodes your encoded data to tree.
    TreeNode* deserialize(const std::string& data) {

        return nullptr;
    }
};

int main() {
    auto node = new TreeNode(1);
    auto left = new TreeNode(2);
    auto leftleft = new TreeNode(2);
    node->left = left;
    left->left = leftleft;

    // TreeNode* ans = deser.deserialize(ser.serialize(root));

    return 0;
}