Compilare: main.cpp: In function 'void dfsD(int, int)': main.cpp:14:18: 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<L[nod].size();i++) | ~^~~~~~~~~~~~~~ main.cpp: In function 'void dfsU(int, int)': main.cpp:30:18: 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<L[nod].size();i++) | ~^~~~~~~~~~~~~~