Compilare: main.cpp: In function 'void dfs(int)': main.cpp:22:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 22 | for(int j = 0; j < graph[node].size(); j++) | ~~^~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:37:18: warning: unused variable 'j' [-Wunused-variable] 37 | int i, x, y, j; | ^