I searching **minmax heap** algorithm implementation,
i remember some things about this structure, her implementation is on one heap.
Even levels (floors) in heap tree is a min colored, and rest of nodes is max colored.
I remember some draft of workings of this but i searching some good document about it or some `C` or `C++` code snippet, i can't find any useful information's by Google, i think is a non widespread algorithm.

Greetings and Thanks for helpful answers.