方案的优劣次序

HFLOWAD

A 4 A 2 A 1 A 3 A 5

HFLPD

A 4 A 1 A 2 A 3 A 5

HFLPAD

A 4 A 1 A 2 A 3 A 5

HFLAOWAD

A 4 A 1 A 2 A 3 A 5