Compilare: main.cpp: In function 'int main()': main.cpp:53:26: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 53 | if(sol.size()==n-1) | ~~~~~~~~~~^~~~~ main.cpp:58:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 58 | for(int i=0;i<sol.size();i++) | ~^~~~~~~~~~~