Compilare: user.c: In function ‘main’: user.c:14:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fp,"%i",&n); ^ user.c:15:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fp,"%i",&k); ^ user.c:21:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fp,"%i",&a); ^ user.c:6:5: warning: ‘smax’ may be used uninitialized in this function [-Wmaybe-uninitialized] return x > y ? x : y; ^ user.c:11:17: note: ‘smax’ was declared here int n,i,a,k,smax; ^