Question

求大神解答一下 英语太差 看不懂 这是lingo代码

MODEL：min=x1+x2+x3+x4+x5+x6；x1+x6>=60；x1+x2>=70；x2+x3>=60；x3+x4>=50；x4+x5>=20；x5+x6>=30；x1>=60；END

Answer 1

输入法有问题，略作更改就能运行：

MODEL:

min=x1+x2+x3+x4+x5+x6;
x1+x6>=60;
x1+x2>=70;
x2+x3>=60;
x3+x4>=50;
x4+x5>=20;
x5+x6>=30;
x1>=60;

END

运行结果：
Global optimal solution found.
Objective value: 150.0000
Infeasibilities: 0.000000
Total solver iterations: 3

Model Class: LP

Total variables: 6
Nonlinear variables: 0
Integer variables: 0

Total constraints: 8
Nonlinear constraints: 0

Total nonzeros: 19
Nonlinear nonzeros: 0

Variable Value Reduced Cost
X1 60.00000 0.000000
X2 10.00000 0.000000
X3 50.00000 0.000000
X4 0.000000 1.000000
X5 30.00000 0.000000
X6 0.000000 0.000000

Row Slack or Surplus Dual Price
1 150.0000 -1.000000
2 0.000000 0.000000
3 0.000000 0.000000
4 0.000000 -1.000000
5 0.000000 0.000000
6 10.00000 0.000000
7 0.000000 -1.000000
8 0.000000 -1.000000