HHC 2015 RPL Programming Contest

[C.Ret]

Oh! Thank you, I miss this instruction.

I also just realise that the 'dot integers' are in fact just reals;
Sorry for that, I am new in HP-50g, I am only a native user of HP-28's RPL !

So, I have to post a new version, a Joe Horn version :

Code:

« I→R DUP SORT ΔLIST SWAP ISPRIME? + 0. POS NOT »

But I am in trouble, I am not confident in this code, due to the SORT instruction that may be slow on large lists