Compilare: main.cpp: In function 'void dfs(int)': main.cpp:14:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 14 | for(int i=0; i<v[nod].size(); i++) | ~^~~~~~~~~~~~~~ main.cpp:23:9: warning: unused variable 'a' [-Wunused-variable] 23 | int a=viz[nod]; | ^ main.cpp: In function 'void afisare(int)': main.cpp:30:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 30 | for(int i=0; i<v[nod].size(); i++) | ~^~~~~~~~~~~~~~