Compilare: main.cpp: In constructor 'Node::Node(int)': main.cpp:21:11: warning: 'Node::right' will be initialized after [-Wreorder] Node* right; ^~~~~ main.cpp:19:9: warning: 'int Node::val' [-Wreorder] int val; ^~~ main.cpp:23:5: warning: when initialized here [-Wreorder] Node(int val): left(nullptr), right(nullptr), val(val) ^~~~ main.cpp: In function 'int main()': main.cpp:96:11: warning: unused variable 'root' [-Wunused-variable] Node* root = getNode(0, n-1, in, pre); ^~~~