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"
uses "mmxprs"
& ?( k3 l8 ~( |* u& [8 I4 z0 V! mdeclarations
0 p$ ^$ {. o) DITEMS = 1..8 ! 物品标号范围
WTMAX = 102 ! 允许携带的重量最大值
/ k7 F, g% U: Z0 C9 U- ~VALUE: array(ITEMS) of real ! 物品价值
" j% [: |$ T+ w  X) g4 m8 uWEIGHT: array(ITEMS) of real ! 物品重量
0 r  v9 K6 U! I1 m: G; M8 }take: array(ITEMS) of mpvar ! 1 表示带走物品i，0 表示不带走物品i
# Q" J4 F+ r; a& T3 r  aend-declarations
- e. L8 q5 W  w6 \! 物品: 1 2 3 4 5 6 7 8
9 U" b/ w2 E* T; S" l. PVALUE := [ 15, 100, 90, 60, 40, 15, 10, 1]
: P) X, a0 x- J; dWEIGHT := [ 2, 20, 20, 30, 40, 30, 60, 10]
. _7 F, d& A% x/ A  j) a1 F' Q! 目标: 使带走的总价值最大
8 ~. _$ ?0 |, k; pMaxVal:= sum(i in ITEMS) VALUE(i)*take(i)
! 重量限制
6 y0 D+ D7 z6 L" _* N" ~sum(i in ITEMS) WEIGHT(i)*take(i) <= WTMAX
! 所有变量取值都为0 或1
$ W. N0 {* O4 r, x4 ]6 Kforall(i in ITEMS) take(i) is_binary
maximize(MaxVal) ! 求解混合整数问题
" x: `8 {) g1 ]4 A- @3 P& _9 v! 打印输出结果
( q% u' A' ]: H( I3 P6 uwriteln("Solution:\n Objective: ", getobjval)
- v( Y* w1 P. d' u" P1 iforall(i in ITEMS) writeln(" take(", i, "): ", getsol(take(i)))
end-model
8 f3 |& p6 V' u% L" Y这段程序运行不了
4 V: n& E6 i4 q1 a5 h

yunyun842

VALUE := [ 15, 100, 90, 60, 40, 15, 10, 1]
WEIGHT := [ 2, 20, 20, 30, 40, 30, 60, 10]
换成
8 \, _$ y- r8 R" ^$ r% P3 x2 q1 TVALUE :: [ 15, 100, 90, 60, 40, 15, 10, 1]
WEIGHT :: [ 2, 20, 20, 30, 40, 30, 60, 10]
试试！

空木葬花

非常感谢楼主的福利！