Compilare: main.cpp: In function 'int main()': main.cpp:34:25: warning: comparison of integer expressions of different signedness: 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 34 | else if(v.size()<n-1) | ~~~~~~~~^~~~ main.cpp:36:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 36 | for(int i=0; i<aux.size(); i++) | ~^~~~~~~~~~~ main.cpp:38:33: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 38 | for(int j=i+1; j<aux.size(); j++) | ~^~~~~~~~~~~ main.cpp:50:24: warning: comparison of integer expressions of different signedness: 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 50 | if(v.size()==n-1) | ~~~~~~~~^~~~~ main.cpp:53:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 53 | for(int i=0; i<v.size(); i++) | ~^~~~~~~~~