Compilare: main.cpp: In function 'int main()': main.cpp:40:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 40 | for( int i = 0; i < vecini[u].size(); i++ ){ | ~~^~~~~~~~~~~~~~~~~~ main.cpp:50:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 50 | for( int i = 1; i < d.size(); i++ ){ | ~~^~~~~~~~~~ main.cpp:15:35: warning: unused variable 'start' [-Wunused-variable] 15 | int nr_noduri, nr_muchii, start; | ^~~~~