Compilare: main.cpp: In constructor 'node::node(T)': main.cpp:11:9: warning: 'node::s' will be initialized after [-Wreorder] int w, s, rev = 0; ^ main.cpp:10:4: warning: 'T node::v' [-Wreorder] T v; ^ main.cpp:13:2: warning: when initialized here [-Wreorder] node(T _v) : s(1), v(_v), w(rand()) {}; ^~~~ main.cpp: In function 'int main()': main.cpp:97:6: warning: unused variable 'n' [-Wunused-variable] int n, q, s = 0, a, b; ^ main.cpp:97:12: warning: unused variable 's' [-Wunused-variable] int n, q, s = 0, a, b; ^