Compilare: user.cpp: In function ‘void dfs(int)’: user.cpp:73:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<v[nod].size(); ++i) ^ user.cpp: In function ‘int main()’: user.cpp:88:27: warning: format ‘%s’ expects argument of type ‘char*’, but argument 2 has type ‘char (*)[35]’ [-Wformat=] while(scanf("%s", &aux)!=EOF) ^ user.cpp:84:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("lant.in","r",stdin); ^ user.cpp:85:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("lant.out","w",stdout); ^ user.cpp:87:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &k); ^