Compilare: main.cpp: In function 'void dfs(int)': main.cpp:49:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 49 | for (i=0; i<G[x].size(); i++) | ~^~~~~~~~~~~~ main.cpp: In function 'void afisare()': main.cpp:58:9: warning: unused variable 'i' [-Wunused-variable] 58 | int i,j; | ^ main.cpp:58:11: warning: unused variable 'j' [-Wunused-variable] 58 | int i,j; | ^