Compilare: main.cpp: In function 'int main()': main.cpp:27:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 27 | for(int i=0; i<localitati.size(); i++){ | ~^~~~~~~~~~~~~~~~~~ main.cpp:36:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 36 | for(int j=0; j<aux.size(); j++){ | ~^~~~~~~~~~~ main.cpp:38:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 38 | for(int i=0; i<aux.size(); i++) | ~^~~~~~~~~~~ main.cpp:46:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 46 | for(int i=0; i<aux.size(); i++) | ~^~~~~~~~~~~