7
Some operation applications
lInitially L
= L, L
lInsert( t,
L)
lInsert(q,
L)
lInsert(b,
L)
lAdvance(L)
lAdvance(L)
lRemove(res,
L)
lInsert(a,
L)
lL, L
lL, t
lL, qt
lL, bqt
lb, qt
lbq, t
lbq, L
lbq, a