Internal data structures

• ResizeArray<char *> names - the array of names, each of which has a data value associated with it.
• ResizeArray<T> Data - the data associated with each name. The size of this array is the same as the size of names.
• ResizeArray<int> sortedOrder - an array of integers which indicates the sorted order for the names array. It is the same length as names and Data.
• int Num - the number of items in these lists.