Compilare: user.cpp: In function ‘int main()’: user.cpp:36:70: warning: too many arguments for format [-Wformat-extra-args] else fprintf(fout ,"lld\n" , (ridic(a[1]-1)-1)%1000000007); ^ user.cpp:20:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin ,"%lld" , &n); ^ user.cpp:23:33: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin ,"%lld" ,&nr); ^ user.cpp:28:36: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin ,"%lld" ,&x); ^