Compilare: main.cpp: In function 'void dfs(int, int)': main.cpp:34:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 34 | for (int i=0; i<l[nod].size (); i++) | ~^~~~~~~~~~~~~~~ main.cpp:51:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 51 | for (int i=0; i<l[nod].size (); i++) | ~^~~~~~~~~~~~~~~ main.cpp:57:32: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 57 | for (int j=0; j<pers[vecin].size (); j++) | ~^~~~~~~~~~~~~~~~~~~~ main.cpp:65:21: warning: 'poz' may be used uninitialized [-Wmaybe-uninitialized] 65 | p[nod]=p[poz]; | ~~~~~^ main.cpp:33:9: note: 'poz' was declared here 33 | int poz; | ^~~