algorithm VP-tree VRP (vehicle routing problem) W walk weak cluster weak-heap weak-heap sort weight-balanced tree weighted, directed graph weighted graph window witness work-depth model work-efficient work-preserving worst case worst-case cost worst-case minimum access Wu's line algorithm X Xiaolin Wu's line algorithm xor Xor filter Y Yule–Simon distribution Z Zeller's congruence 0-ary function 0-based indexing 0/1 knapsack problem Zhu–Takaoka string matching algorithm Zipfian distribution Zipf's law Zipper (data structure) Zip tree ZPP References Algorithms and data structures Algorithms and data structures zh:数据结构与算法列表