[zyzzy]

Hi,

I ran your code and it does run well. However fails for large cases such as pascal(200000).

You mentioned you worked for Google and Amazon, how can you modify the code to get an answer for pascal(200000)

[haberman]

Yeah, for large cases the long will overflow (also it will do a lot of realloc()). Your two main options for this are:

  1. use double to get approximately-correct answers
  2. use an abitrary-precision library like GMP

[zyzzy]

What if I wanted an exact precision. Could I use a custom data type to get better precision? If I used a custom data type, how could I make the code work for a distributed system to get parallel behavior?