go.etcd.io/etcd@v3.3.27+incompatible/pkg/adt/img (about) red-black-tree-01-insertion.png red-black-tree-02-delete-514.png red-black-tree-03-delete-11.png red-black-tree-04-delete-11.png red-black-tree-05-delete-11.png red-black-tree-06-delete-11.png red-black-tree-07-delete-11.png red-black-tree-08-delete-11.png red-black-tree-09-delete-11.png