FOR each v on ADJ$[$u$]\{15$: IF v is WHITE $\{16$: Set the color of v to GRAY; $16$: Update v$$s key, pi; $//$ Relax$($u$,$ v$,$ w$)$; $17$: Insert v into pHeap; $18$: $\}$ELSE IF v is GRAY $\{19$: Relax$($u$,$ v$,$ w$)$; $20$: Call DecreaseKey if nexessary; $//$ Using the position field of v $21$: $\}22$: $\}23$: Color u BLACK;