Compilare: main.cpp: In function 'int main()': main.cpp:32:25: warning: comparison of integer expressions of different signedness: 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 32 | else if(v.size()<n-1) | ~~~~~~~~^~~~ main.cpp:34:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 34 | for(int i=0;i<aux.size();i++) | ~^~~~~~~~~~~ main.cpp:36:32: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 36 | for(int j=i+1;j<aux.size();j++) | ~^~~~~~~~~~~ main.cpp:49:20: warning: comparison of integer expressions of different signedness: 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 49 | if(v.size()==n-1) | ~~~~~~~~^~~~~ main.cpp:52:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 52 | for(int i=0;i<v.size();i++) | ~^~~~~~~~~