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！！！
# e( n! W( t/ h& t& R9 k  ~0 Hmodel "Burglar 1"
uses "mmxprs"
5 U! O: b8 a/ _+ T7 Q2 C# F5 y+ Hdeclarations
* {5 Q8 A3 A. D  |. _7 LITEMS = 1..8 ! 物品标号范围
WTMAX = 102 ! 允许携带的重量最大值
8 r2 u  f- p" W4 j3 Z0 BVALUE: array(ITEMS) of real ! 物品价值
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
! j  f6 S$ j7 Q$ i! 物品: 1 2 3 4 5 6 7 8
/ a  Q/ J4 |! A3 `1 ]6 ~VALUE := [ 15, 100, 90, 60, 40, 15, 10, 1]
# K$ K$ W, j6 DWEIGHT := [ 2, 20, 20, 30, 40, 30, 60, 10]
* P; p8 e+ c' l# `; B% ~) K! 目标: 使带走的总价值最大
7 I. D% v2 C: PMaxVal:= sum(i in ITEMS) VALUE(i)*take(i)
- p9 L& v0 C# u0 X$ w! 重量限制
- l! w9 O' V* w8 @sum(i in ITEMS) WEIGHT(i)*take(i) <= WTMAX
! 所有变量取值都为0 或1
forall(i in ITEMS) take(i) is_binary
/ T. u0 }! B0 h+ x8 umaximize(MaxVal) ! 求解混合整数问题
5 \3 s' b3 c; H( P9 }! 打印输出结果
writeln("Solution:\n Objective: ", getobjval)
forall(i in ITEMS) writeln(" take(", i, "): ", getsol(take(i)))
' }( ^' ]; A4 \8 c- v/ Oend-model
这段程序运行不了
& _+ S$ t" G; J5 C: f1 G2 v3 h

yunyun842

VALUE := [ 15, 100, 90, 60, 40, 15, 10, 1]
WEIGHT := [ 2, 20, 20, 30, 40, 30, 60, 10]
  u* b  x- h5 f9 T% E换成
$ u0 F; p" S4 k2 vVALUE :: [ 15, 100, 90, 60, 40, 15, 10, 1]
2 Y8 X( F& Z7 O4 M8 H0 B  yWEIGHT :: [ 2, 20, 20, 30, 40, 30, 60, 10]
试试！

空木葬花

非常感谢楼主的福利！