Compilare: user.c: In function ‘main’: user.c:35:26: warning: unused variable ‘k’ [-Wunused-variable] long long t,n,*v,i,j,k,l; ^ user.c:36:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f1,"%lli",&t); ^ user.c:38:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f1,"%lli",&n); ^ user.c:41:19: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f1,"%lli",&v[i]); ^