Compilare: user.c: In function ‘main’: user.c:16:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(pf,"%d %d",&n,&s); ^ user.c:19:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(pf,"%d",&v[i]); ^ user.c:60:24: warning: ‘nr2’ may be used uninitialized in this function [-Wmaybe-uninitialized] if (v[i]+v[j]+v[k]==nr2 && ok==1) ^ user.c:51:24: warning: ‘nr1’ may be used uninitialized in this function [-Wmaybe-uninitialized] if (v[i]+v[j]+v[k]==nr1 && ok==1) ^