分支定界法 4.81 x1<4x 1.82 B,:x,=4.00 zo=356 2=2.10 349 x,≥5 B2:x1=5.00 1.57 341 0 349 012345670 1 2 3 4 5 6 7 4 3 2 1 B1 349 2 . 10 : 4 . 00 1 2 1 1 = = = z x B x 341 1 .57 : 5 .00 2 2 2 1 = = = z x B x z = 0 z = 349 B 2 356 1 .82 4 .81 0 2 1 = = = z x x 5 x 1 ³ 4 x 1 £