[boost] GSoC idea - interval trees, binary indexed trees, permutation

Hello, my name is Sebastian Brestin. I am a student from Romania. While reading Boost documentation, and reviews on XInt, I though about the possibility of implementing for Boost some new data structures that are not yet implemented not even in STL like interval trees, binary indexed trees. I also have an other idea about implementing (Boost:Permutation) a Permutation Class that allows operations on permutations. What do you think?