Compilare: main.cpp: In function 'void dfs(long long int)': main.cpp:44:23: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<v>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 44 | for (int i = 0; i < adj[node].size(); ++i) | ~~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:58:18: warning: unused variable 'j' [-Wunused-variable] 58 | int n, m, i, j, x, y, z, cmp_cnx = 0; | ^ main.cpp:58:21: warning: unused variable 'x' [-Wunused-variable] 58 | int n, m, i, j, x, y, z, cmp_cnx = 0; | ^ main.cpp:58:24: warning: unused variable 'y' [-Wunused-variable] 58 | int n, m, i, j, x, y, z, cmp_cnx = 0; | ^ main.cpp:58:27: warning: unused variable 'z' [-Wunused-variable] 58 | int n, m, i, j, x, y, z, cmp_cnx = 0; | ^