Compilare: user.cpp: In function ‘void dfs(int)’: user.cpp:26:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<graf[x].size();i++) ^ user.cpp:34:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0,m=1; i<fii.size(); i++,m++) ^ user.cpp: In function ‘int main()’: user.cpp:61:27: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f1,"%d",&teste); ^ user.cpp:66:27: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f1,"%d",&n); ^ user.cpp:69:36: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f1,"%d%d",&a,&b); ^