Compilare: main.cpp: In function 'void dfs(int)': main.cpp:30:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 30 | for(int f = 0 ; f < p[nod].size() ; f ++) | ~~^~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:90:39: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 90 | if(!viz[f] && p[f].size() == e) | ~~~~~~~~~~~~^~~~