C++ 6 Line Understandable Code
\tclass Solution {\n\tpublic:\n    vector v;\n    vector postorder(Node* root) {\n        if(root==NULL) return v;\n        for(int i=0;ichildren.size();i++) po
\tclass Solution {\n\tpublic:\n    vector<int> v;\n    vector<int> postorder(Node* root) {\n        if(root==NULL) return v;\n        for(int i=0;i<root->children.size();i++) postorder(root->children[i]);\n        v.push_back(root->val);\n        return v;\n    }\n};
['C', 'C++']