Compilare: main.cpp: In function 'int main()': main.cpp:54:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(int i = 1;i <= n; i++) ^~~ main.cpp:61:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' dfs(1); ^~~ main.cpp:65:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < ans.size(); i++) ~~^~~~~~~~~~~~