Compilare: main.cpp: In function 'int main()': main.cpp:30:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 30 | for(int i=1; i<parg.size(); ++i) | ~^~~~~~~~~~~~ main.cpp: In function 'void make_rmq()': main.cpp:66:29: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 66 | for(int p2=1, doi=2; doi<parg.size(); doi*=2,++p2) | ~~~^~~~~~~~~~~~ main.cpp:67:29: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 67 | for(int i=1; i+doi-1<parg.size(); ++i) | ~~~~~~~^~~~~~~~~~~~