DATA ALIGNMENT METHOD, POSITION EXCHANGE METHOD, COMPRESSION METHOD, DATA ALIGNMENT DEVICE, POSITION EXCHANGE DEVICE, COMPRESSION DEVICE AND RECORDING MEDIUM

摘要

PROBLEM TO BE SOLVED: To provide a data alignment method capable of accelerating processing speed and reducing the amount of a memory. SOLUTION: A CPU 22 is provided with first alignment processing for paying attention to the order from the head of respective arrays for the symbols of plural array elements, dividing the plural array elements into plural groups based on the symbol at the position under consideration and aligning the array elements of the respective groups and recursively executes the first alignment processing to the array after alignment.