Compilare: user.cpp: In function ‘bool bfs()’: user.cpp:37:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<go[act].size(); i++) ^ user.cpp: In function ‘int main()’: user.cpp:88:33: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d%d",&nrnod,&nrmuc); ^ user.cpp:94:31: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d%d%d",&a,&b,&c); ^