Compilare: main.cpp: In function 'int main()': main.cpp:40:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 40 | for(int i=m-1; i<real.size(); i++) | ~^~~~~~~~~~~~ main.cpp:61:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 61 | for(int i=0; i<real.size(); i++) | ~^~~~~~~~~~~~ main.cpp:71:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 71 | for(int i=0; i<uman.size(); i++) | ~^~~~~~~~~~~~