Compilare: main.cpp: In function 'int main()': main.cpp:98:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<norma.size();i++) ~^~~~~~~~~~~~~ main.cpp: In function 'int query(int, int, int)': main.cpp:83:1: warning: control reaches end of non-void function [-Wreturn-type] } ^