Compilare: main.cpp: In constructor 'node::node(int, int)': main.cpp:12:17: warning: 'node::val' will be initialized after [-Wreorder] int prior , val , sz , rev; ^~~ main.cpp:12:9: warning: 'int node::prior' [-Wreorder] int prior , val , sz , rev; ^~~~~ main.cpp:14:5: warning: when initialized here [-Wreorder] node(int _val,int _prior):val(_val) , prior(_prior) , sz(1) , rev(0) , l(0) , r(0){} ^~~~