Xpress-IVE 建模问题

cy411522

哪位高人能帮小弟解决这个问题，小弟不甚感激！！！
model "Burglar 1"
/ ~& G4 P) I1 z  Z+ Quses "mmxprs"
declarations
ITEMS = 1..8 ! 物品标号范围
& T* F7 _! @6 G. ?$ N1 {, |WTMAX = 102 ! 允许携带的重量最大值
VALUE: array(ITEMS) of real ! 物品价值
0 H0 Q& g4 D1 J8 L, `WEIGHT: array(ITEMS) of real ! 物品重量
take: array(ITEMS) of mpvar ! 1 表示带走物品i，0 表示不带走物品i
end-declarations
! 物品: 1 2 3 4 5 6 7 8
VALUE := [ 15, 100, 90, 60, 40, 15, 10, 1]
) _3 W3 m! Z# D- O  MWEIGHT := [ 2, 20, 20, 30, 40, 30, 60, 10]
; ]9 ?$ e/ b2 U! Q- h% l! 目标: 使带走的总价值最大
MaxVal:= sum(i in ITEMS) VALUE(i)*take(i)
! 重量限制
7 _* m- i" N% x2 y6 b# o- dsum(i in ITEMS) WEIGHT(i)*take(i) <= WTMAX
6 s+ D( v5 w0 g4 K! O! 所有变量取值都为0 或1
forall(i in ITEMS) take(i) is_binary
2 @0 c: e% ~# O8 ^maximize(MaxVal) ! 求解混合整数问题
! 打印输出结果
. P: L7 a- ^5 K. fwriteln("Solution:\n Objective: ", getobjval)
# T- P% {7 |% m8 U4 Oforall(i in ITEMS) writeln(" take(", i, "): ", getsol(take(i)))
& x4 t7 ]& \5 U, E* Jend-model
这段程序运行不了
1 H! e" x2 p1 Z# U1 s

空木葬花

非常感谢楼主的福利！

yunyun842

VALUE := [ 15, 100, 90, 60, 40, 15, 10, 1]
WEIGHT := [ 2, 20, 20, 30, 40, 30, 60, 10]
换成
1 M: X8 X$ F$ v, F( N3 y6 OVALUE :: [ 15, 100, 90, 60, 40, 15, 10, 1]
WEIGHT :: [ 2, 20, 20, 30, 40, 30, 60, 10]
试试！