Compilare: main.cpp: In function 'void dfs(int)': main.cpp:61:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 61 | for(i=0;i<G[x].size();i++) | ~^~~~~~~~~~~~ main.cpp: In function 'void afisare()': main.cpp:68:9: warning: unused variable 'i' [-Wunused-variable] 68 | int i, j; | ^ main.cpp:68:12: warning: unused variable 'j' [-Wunused-variable] 68 | int i, j; | ^