 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
l |
Randomly
partition edges in two groups
|
|
|
» |
each
like a ½ -sample:
e = O*(c-½)
|
|
|
|
|
l |
Recursively pack
trees in each half
|
|
|
|
» |
c/2 - O*(c½) trees
|
|
|
|
|
l |
Merge packings
|
|
|
|
» |
gives
packing of size c
- O*(c½)
|
|
|
|
|
|
» |
augment
to maximum packing: O*(mc½)
|
|
|
|
|
l |
T(m,c)=2T(m/2,c/2)+O*(mc½)
= O*(mc½)
|
|
|
|