tumblr-shorten-uri-partial.cpp

#include <iostream>
#include <algorithm>
#include <boost/lexical_cast.hpp>

int main(int argc, char* argv[])
{
  int post_id = boost::lexical_cast<int>(argv[1]);
  std::string s;
  char path_chars[] = "0123456789abcdefghijklmnopqrstuvwxyz";

  while (post_id > 0) {
    s += path_chars[post_id % 36];
    post_id /= 36;
  }
  std::copy(s.rbegin(), s.rend(), std::ostreambuf_iterator<char>(std::cout));
  std::cout << '\n';
}