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升级    17% TA的每日心情 | 开心
2013-3-7 15:34 |
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签到天数: 1 天 [LV.1]初来乍到
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14#
发表于 2009-8-27 02:00
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写了个非常简单的模型, 但是模型运行出错, 没能找出原因.7 t. K4 ?7 I. s+ ]. y4 F4 n
错误提示是没有可行解.- MODEL:
6 D# h ]# @' B9 _3 ` - SETS:
& a\" N' ]* M3 F- B! O: s\" _ - ROW/0,1,2,3,4,5,6/;
# t# f3 L# a/ ~: a! u/ i\" d9 P- a - COL/0,1,2,3,4,5,6/;
5 r+ w E2 j, i9 Q - POINT(ROW,COL):lv1,lv2,lv3,lv4;( }% J/ z) t6 h, ~) ~
- ENDSETS
' ^# B; o: C- L B% [ - DATA:8 A( k2 \0 y1 ?\" n: Y
- lv1 =
( {- Y+ k* F7 A/ R# l - 0,0,0,0,0,0,0,
: U/ U1 Y! X4 Q$ f' A) v - 0, , , , , ,0,
8 E- G0 M* i2 {: e& s\" q/ z - 0, , , , , ,0,
* w, O G2 K( A9 C - 0, , , , , ,0,
! i, l- c8 g9 I/ A) a# T0 |, \. g - 0, , , , , ,0, p8 N) t! J0 j/ l5 B
- 0, , , , , ,0,9 b8 C\" M) ^( j9 x9 n) @( W
- 0,0,0,0,0,0,0;% j' ` Q2 t( l D0 z3 H
- lv2 =
# e7 P# H3 f9 [: }+ n( t9 V - 0,0,0,0,0,0,0,
( c- ?5 L; G' V; t! I - 0, , , , , ,0,
' N/ ]* i. B\" K, j( n - 0, , , , , ,0,
+ ^0 ^7 ~! l3 n$ W3 x! { - 0, , , , , ,0,2 j) q* Q) j, V; l+ K8 l6 k
- 0, , , , , ,0,
# g* d9 |1 J% m9 D. s E J - 0, , , , , ,0,( l2 w7 W6 S' w! W
- 0,0,0,0,0,0,0;( h. I6 b( M- E3 Q/ R5 {
- lv3 =
+ `# A3 z# l7 D - 0,0,0,0,0,0,0,
/ U/ r5 A% v5 R) k - 0, , , , , ,0,
# i/ d. o ~$ h* g+ z) u$ B4 _ - 0, , , , , ,0,+ h% \4 D1 ~6 W) L
- 0, , , , , ,0,/ Y3 K. [\" D; [9 M/ o3 s
- 0, , , , , ,0,
7 W; v' Q) l) S! \9 | - 0, , , , , ,0,
1 L. h% s/ ~; I v - 0,0,0,0,0,0,0;$ z3 b8 n1 | h: a$ r$ F$ Q# O% s
- lv4 = / ?3 n( _4 D+ \2 e6 t
- 0,0,0,0,0,0,0,
* ?: |. }* k5 W* ], d0 ~ - 0, , , , , ,0,
6 I5 |$ s8 p2 ] u' w# {+ g - 0, , , , , ,0,
) F9 n! I' t; B/ M4 h1 I - 0, , , , , ,0,
+ V9 @( F6 y1 m! b Z - 0, , , , , ,0,
* Y0 V- f ~+ `* g3 T) C+ W$ z3 @ - 0, , , , , ,0,( ^- i( v; c3 P9 w. z
- 0,0,0,0,0,0,0;
1 \4 Z; q7 z- C: G. a$ f5 C% V - ENDDATA' k1 D! ]' G$ d ^\" I+ \# p- j- a' n
- ! lv1,lv2,lv3,lv4 should be 0-1 variable;
' G( D3 i: j/ v- j, k6 A0 g - @FOR(POINT(i,j):@BIN(lv1););! Q9 w\" B2 U: b4 I1 J
- @FOR(POINT(i,j):@BIN(lv2););
% x4 B\" Q7 S8 D\" K1 Z7 U# @1 `- ` - @FOR(POINT(i,j):@BIN(lv3););, y1 S) b6 C4 j
- @FOR(POINT(i,j):@BIN(lv4););
; d& A. _0 B# f
8 o# q3 W6 ~& k/ W I6 j3 W0 J- ! Only ONE building can be placed in one place;
C) |5 n, I5 v# g) R3 G5 M. d\" u - @FOR(POINT(i,j)|(i#GT#1)#AND#(i#LT#5)#AND#(j#GT#1)#AND#(j#LT#5):lv1+lv2+lv3+lv4=1);
( N0 O\" m! m7 W: S - 4 z- \7 x) h# A$ D
- ! @FOR(POINT(i,j)|(lv2#EQ#1)#AND#(i#GE#1)#AND#(i#LE#5)#AND#(j#GE#1)#AND#(j#LE#5):
; x8 \4 x. \9 O9 x e - lv1(i-1,j)+lv1(i+1,j)+lv1(i,j-1)+lv1(i,j+1)>1);, j$ I4 [5 |+ ^; z$ E- e: }1 U5 a
& w9 E; |) b2 z! S' W+ e- ! @FOR(POINT(i,j)|(lv3#EQ#1)#AND#(i#GE#1)#AND#(i#LE#5)#AND#(j#GE#1)#AND#(j#LE#5):- }. b. ?/ P; r7 N K6 T2 \
- lv1(i-1,j)+lv1(i+1,j)+lv1(i,j-1)+lv1(i,j+1)>1);3 n\" C9 r$ U' ^
- ! @FOR(POINT(i,j)|(lv3#EQ#1)#AND#(i#GE#1)#AND#(i#LE#5)#AND#(j#GE#1)#AND#(j#LE#5):
) ^& k4 j$ r C& v\" N\" c3 E - lv2(i-1,j)+lv2(i+1,j)+lv2(i,j-1)+lv2(i,j+1)>1);
6 A% ~8 L. p8 f+ M1 Q& q - & l, [9 \( z% s$ R
- ! @FOR(POINT(i,j)|(lv4#EQ#1)#AND#(i#GE#1)#AND#(i#LE#5)#AND#(j#GE#1)#AND#(j#LE#5):
9 L! X7 @1 c$ D# F# ~ - lv1(i-1,j)+lv1(i+1,j)+lv1(i,j-1)+lv1(i,j+1)>1);! O2 D\" C a# ]6 P/ R) Y, M
- ! @FOR(POINT(i,j)|(lv4#EQ#1)#AND#(i#GE#1)#AND#(i#LE#5)#AND#(j#GE#1)#AND#(j#LE#5):! b\" ?6 b8 a' S# v0 w0 ?
- lv2(i-1,j)+lv2(i+1,j)+lv2(i,j-1)+lv2(i,j+1)>1);' O' d; w\" q% w4 r' o8 z1 T8 Z
- ! @FOR(POINT(i,j)|(lv4#EQ#1)#AND#(i#GE#1)#AND#(i#LE#5)#AND#(j#GE#1)#AND#(j#LE#5):
4 \4 t6 o. E- j+ j - lv3(i-1,j)+lv3(i+1,j)+lv3(i,j-1)+lv3(i,j+1)>1);
4 n8 o D7 @( k0 I3 W - 6 v* `\" m [* Z% q; i
- MAX = population;- G. t; r4 A) u- k: m5 n\" C5 G7 N
- population = @SUM(POINT(i,j):100*lv1+400*lv2+700*lv3+1000*lv4);$ I* `* B/ T/ ~! M6 Q7 Y
) Q5 r Y( z8 f7 [- S$ F- INIT:
) \6 I E3 R: W& C9 D0 G - lv1 =
8 m' |5 j. R% [5 N - 0 0 0 0 0 0 0% m) g( W9 U9 L( C, S6 G
- 0 1 1 1 1 1 08 L$ S! i5 K+ F' F
- 0 1 1 1 1 1 0
9 Q6 T% p! P8 J - 0 1 1 1 1 1 0' }1 D! Y3 ~- n; |1 T4 w* k
- 0 1 1 1 1 1 0
1 f, A) n' d7 s4 [* j$ O! C) { - 0 1 1 1 1 1 0% _( a0 h, _5 P) Z! I
- 0 0 0 0 0 0 0;
' ?' s. {- D% F+ `& l0 V0 I - lv2 = ) ~' l% z! \1 L
- 0 0 0 0 0 0 0; j; j+ m7 ~' r+ D
- 0 1 1 1 1 1 0
- o5 a: v2 n5 o2 Z - 0 1 1 1 1 1 0
: C+ M# `* V* R6 z) q: E - 0 1 1 1 1 1 0
$ U, E2 d X; E `7 q0 L+ V - 0 1 1 1 1 1 0
: a& z! |; Q( f - 0 1 1 1 1 1 0
& G: j8 e* v8 u; Q* i - 0 0 0 0 0 0 0;6 g' m3 G2 i+ j+ a4 W. Y4 V
- lv3 = 2 Y4 c* s* R; @1 r* B\" H
- 0 0 0 0 0 0 07 ^6 {0 Q |( q2 {$ x& W0 r$ f
- 0 0 0 0 0 0 0
: R$ F7 p/ k1 ^: J9 v+ ], g. H - 0 0 0 0 0 0 0/ {3 X) ]; W4 J4 c; ~
- 0 0 0 0 0 0 0
3 b8 {( o: k2 C( R# Q4 V, [ - 0 0 0 0 0 0 0: b; n& K' e8 b; H# a; w/ @
- 0 0 0 0 0 0 0
' Z- c0 s* P, L6 L; r% G) f+ n - 0 0 0 0 0 0 0;
3 i: f1 Y! G# Q. q* D# S& v - lv4 =
9 ?* Y& F2 p* z) I4 i\" f0 L& _* m - 0 0 0 0 0 0 0
d( e( ^& @\" b3 }, ? - 0 0 0 0 0 0 0
; a' O: t, r& Y2 d7 a! Q4 N8 D - 0 0 0 0 0 0 0
; F8 P7 S% }, V4 a - 0 0 0 0 0 0 03 h( \( `& D3 _7 M
- 0 0 0 0 0 0 0
2 f, _# W) Z$ N- k' N5 { - 0 0 0 0 0 0 02 R# ]) H) K+ |$ r
- 0 0 0 0 0 0 0;4 \- r' D3 B# s& E( C4 d
- ENDINIT
8 J/ ?) C7 m& { - END
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