Compilare: main.cpp: In function 'void dfs(int, int)': main.cpp:21:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 21 | for(int i=0; i<graf[nod].size(); i++) | ~^~~~~~~~~~~~~~~~~ main.cpp:33:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 33 | for(int i=0; i<graf[nod].size(); i++) | ~^~~~~~~~~~~~~~~~~ main.cpp:46:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 46 | for(int i=0; i<graf[nod].size(); i++) | ~^~~~~~~~~~~~~~~~~