Compilare: main.cpp: In function 'void nr_de_insule_de_la_rad(int, int)': main.cpp:90:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 90 | for(int i=0;i<graf[nod].size();i++) | ~^~~~~~~~~~~~~~~~~ main.cpp: In function 'void dfs_nivel(int, int)': main.cpp:157:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 157 | for(int i=0; i< graf[x].size(); i++) | ~^~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:199:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 199 | for(int j=0;j<graf[i].size();j++) | ~^~~~~~~~~~~~~~~