bes+ (4,4) 8,8 7, s(-,+g 9,8 c(s+,1) (3 3,3 (42) C 5,5 (44) d(c+,2) In the path(S, b, c, t)from s to t, edge(c, b)is reverse orderIn the path (s,b,c,t) from s to t, edge (c,b) is reverse order