/in/foo.cc: In function 'int main()':
/in/foo.cc:82:23: warning: format '%lld' expects argument of type 'long long int', but argument 2 has type 'int' [-Wformat=]
  printf("%lld",n,f[lc]);
                       ^
/in/foo.cc:82:23: warning: too many arguments for format [-Wformat-extra-args]