From: Sorting by reversals and block-interchanges with various weight assignments
w r | w bi | Results |
---|---|---|
1 | 1 ≤ w bi < 2 | 2/w bi -app. with O(n3) time |
 | 2 | O(n3/2)-time algorithm |
 | 2 <w bi < 3 | 1.225-app. with O(n3/2) time |
 | 3 ≤ w bi | O(n3/2)-time algorithm [6] |