Compilare: user.c: In function ‘main’: user.c:10:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%u",&t); ^ user.c:13:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%u %u %u %u %u %u %u",&x,&y,&z,&a,&b,&c,&n); ^ user.c:28:16: warning: ‘f’ may be used uninitialized in this function [-Wmaybe-uninitialized] fprintf(fout,"%u\n",(int)f); ^