Compilare: main.cpp: In function 'void dfs1(int)': main.cpp:26:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 26 | for(i=0;i<v[nod].fii.size();i++) | ~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'void dfs2(int)': main.cpp:40:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 40 | for(i=0;i<v[nod].fii.size();i++) | ~^~~~~~~~~~~~~~~~~~