Reduce memory use of probe::par
Reduce memory use of probe::par

Instead of computing all the values of DM and extracting the biggest
one, we compute them on the fly and compare them to the current biggest
element to avoid having to store O(n) values for DM.

Morwenn/cpp-sort,Morwenn/cpp-sort,Morwenn/cpp-sort,Morwenn/cpp-sort