Compilare: user.c: In function ‘main’: user.c:9:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&n); ^ user.c:13:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&a); ^ user.c:25:12: warning: ‘d2’ may be used uninitialized in this function [-Wmaybe-uninitialized] fprintf(fout,"%d %d %d",max,d1+1,d2+1); ^ user.c:25:12: warning: ‘d1’ may be used uninitialized in this function [-Wmaybe-uninitialized]