语法有一点点错误,改成这样就可以了:
运行结果,得到全局最优解:
Global optimal solution found.
Objective value: 3.000000
Objective bound: 3.000000
Infeasibilities: 0.000000
Extended solver steps: 9
Total solver iterations: 1104
Model Class: PILP
Total variables: 272
Nonlinear variables: 0
Integer variables: 272
Total constraints: 33
Nonlinear constraints: 0
Total nonzeros: 544
Nonlinear nonzeros: 0
Variable Value Reduced Cost
C 1474.560 0.000000
Y( 1) 1.000000 1.000000
Y( 2) 1.000000 1.000000
Y( 3) 0.000000 1.000000
Y( 4) 0.000000 1.000000
Y( 5) 0.000000 1.000000
Y( 6) 0.000000 1.000000
Y( 7) 0.000000 1.000000
Y( 8) 0.000000 1.000000
Y( 9) 0.000000 1.000000
Y( 10) 0.000000 1.000000
Y( 11) 0.000000 1.000000
Y( 12) 0.000000 1.000000
Y( 13) 1.000000 1.000000
Y( 14) 0.000000 1.000000
Y( 15) 0.000000 1.000000
Y( 16) 0.000000 1.000000
W( 1) 46.00000 0.000000
W( 2) 55.00000 0.000000
W( 3) 62.00000 0.000000
W( 4) 87.00000 0.000000
W( 5) 108.0000 0.000000
W( 6) 114.0000 0.000000
W( 7) 137.0000 0.000000