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！！！
0 k" @7 h% l* g$ o7 qmodel "Burglar 1"
uses "mmxprs"
declarations
5 ]" t  M* t, q( U$ S% kITEMS = 1..8 ! 物品标号范围
* j4 H6 Y8 X0 W5 n% i3 qWTMAX = 102 ! 允许携带的重量最大值
VALUE: 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
9 e* U* D+ {/ @1 m' v+ Send-declarations
  J6 f: ?; e! y! 物品: 1 2 3 4 5 6 7 8
1 h2 ~! v/ B3 M3 _6 E" l) FVALUE := [ 15, 100, 90, 60, 40, 15, 10, 1]
% S' I5 |1 d# u8 ~9 J0 nWEIGHT := [ 2, 20, 20, 30, 40, 30, 60, 10]
7 I: z3 L9 A# I6 i: K! 目标: 使带走的总价值最大
MaxVal:= sum(i in ITEMS) VALUE(i)*take(i)
! 重量限制
: j, ~4 k! q; p' X; H  Zsum(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
maximize(MaxVal) ! 求解混合整数问题
: V5 R) O/ Q4 @% Z+ g! 打印输出结果
2 V) D. z1 Z4 i6 Pwriteln("Solution:\n Objective: ", getobjval)
forall(i in ITEMS) writeln(" take(", i, "): ", getsol(take(i)))
end-model
( T2 E4 N8 u& E" K% O这段程序运行不了
4 M3 A4 ], Y3 p$ m( R# I

yunyun842

VALUE := [ 15, 100, 90, 60, 40, 15, 10, 1]
9 \3 Z. z+ b9 @& f; }5 \# y$ ^WEIGHT := [ 2, 20, 20, 30, 40, 30, 60, 10]
换成
% x1 D) B0 B1 S8 o. kVALUE :: [ 15, 100, 90, 60, 40, 15, 10, 1]
2 g0 L3 A1 R4 q  wWEIGHT :: [ 2, 20, 20, 30, 40, 30, 60, 10]
6 q0 ]* g% W# R: P7 Z5 d! j+ k1 s试试！

空木葬花

非常感谢楼主的福利！