/in/foo.cc: In function 'int main()':
/in/foo.cc:86:15: error: too few arguments to function 'void factor(ll, std::map<long long int, int>&)'
   86 |         factor(n);
      |         ~~~~~~^~~
/in/foo.cc:72:6: note: declared here
   72 | void factor(ll n, map<ll, int>& factors) {
      |      ^~~~~~