Question

跪求怎么用lingo求解等式组和不等式组的解的程序代码，急用！谢谢！我的QQ是1226085152。好了发过来下

max u=290*x1+320*x2+230*x3+280*x4+310*y1+320*y2+260*y3+300*y4+260*z1+250*z2+220*z3;
条件是：
x1+x2+x3+x4=50;
y1+y2+y3+y4=60;
z1+z2+z3=50;
30<=x1+y1+z1<=50;
70<=x2+y2+z2<=140;
10<=x3+y3+z3<=30;
10<=x4+y4<=50;

Answer 1

max=290*x1+320*x2+230*x3+280*x4+310*y1+320*y2+260*y3+300*y4+260*z1+250*z2+220*z3;

x1+x2+x3+x4=50;
y1+y2+y3+y4=60;
z1+z2+z3=50;
30<=x1+y1+z1;
x1+y1+z1<=50;
70<=x2+y2+z2;
x2+y2+z2<=140;
10<=x3+y3+z3;
x3+y3+z3<=30;
10<=x4+y4;
x4+y4<=50;