title: convert md5 string to base 62 string in c++
body: <p>i'm trying to convert an md5 string (base 16) to a base 62 string in c++.  every solution i've found so far for converting to base 62 only works if you can represent your number as a 64 bit integer or smaller.  an md5 string is 128 bits and i'm not getting anywhere with this on my own.</p>
  
  <p>should i just include a bigint library and be done with it?</p>