The proposed tree-based methods: TPM and DTM.
arkr.cpp main function
model.hpp data structure, product and preference, rtree
method.hpp methods
traversal_rtree.hpp vector_visitor.hpp are_levels_ok.hpp the dfs of Rtree
paramter
1: p,w number (* 1000)
2: q number
3: q range low (01)
4: q range up (01)
5: execute time
6: k