optimum merging patterns

The method of determining a sequence in which specific sorted tapes in a file should be processed so as to minimize the total number of merge passes required to create a single file of sequenced records.; 决定顺序的方法,文件中经过特殊排序的磁带用此法进行处理之后,可使生成顺序记录的单 个文件时所需的归并遍数最少。