Compilare: user.cpp: In function ‘int main()’: user.cpp:65:32: warning: format ‘%lld’ expects argument of type ‘long long int*’, but argument 3 has type ‘long long int’ [-Wformat=] fscanf(fout,"%lld\n\n",a[k]); ^ user.cpp:63:33: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%lld%lld",&n,&q); ^ user.cpp:65:33: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fout,"%lld\n\n",a[k]); ^ user.cpp:68:37: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%lld%lld",&x,&y); ^