Compilare: user.c: In function ‘main’: user.c:28:9: warning: statement with no effect [-Wunused-value] for(max; max>-1 && v[s]==0; max--) ^ user.c:8:13: warning: unused variable ‘j’ [-Wunused-variable] int n,i,j,max,s=0,c,so; ^ user.c:12:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d",&n); ^ user.c:15:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d",&l[i]); ^