Compilare: main.cpp: In instantiation of 'rmq<T>::rmq(const std::vector<T>&) [with T = int]': main.cpp:141:27: required from here main.cpp:70:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; (1 << i) < v.size(); ++i) main.cpp: In instantiation of 'void rmq<T>::Setlg2() [with T = int]': main.cpp:73:19: required from 'rmq<T>::rmq(const std::vector<T>&) [with T = int]' main.cpp:141:27: required from here main.cpp:117:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 2; i < v.size(); ++i) main.cpp: In instantiation of 'void rmq<T>::Update() [with T = int]': main.cpp:74:15: required from 'rmq<T>::rmq(const std::vector<T>&) [with T = int]' main.cpp:141:27: required from here main.cpp:100:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < v.size(); ++i) main.cpp:103:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 1; (1 << i) < v.size(); ++i) main.cpp:104:47: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j + (1 << (i - 1)) < v.size(); ++j)