Compilare: main.cpp: In function 'int main()': main.cpp:50:29: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 50 | for(ll j=0;j<path.size()-1;j++){ | ~^~~~~~~~~~~~~~ main.cpp:64:19: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 64 | for(ll i=0;i+1<path.size();i++) fout<<path[i]<<' '; | ~~~^~~~~~~~~~~~