Compilare: user.c: In function ‘main’: user.c:35:33: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] long long int n,k,q,x,y,z;fscanf(in,"%lld",&n); ^ user.c:36:7: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%lld",&k); ^ user.c:37:7: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%lld",&q); ^ user.c:38:7: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%lld",&x); ^ user.c:39:7: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%lld",&y); ^ user.c:40:7: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%lld",&z); ^