lp_solve 规范

出错：
min y1-y2;
y1 = 116 x11 + 82 x12 + 82 x13 + 125 x14 + 83 x15 + 168 x16;
y2 = 116 x21 + 82 x22 + 82 x23 + 125 x24 + 83 x25 + 168 x26;
y1 - y2 >= 0;
x11 + x21 = 1;
x12 + x22 = 1;
x13 + x23 = 1;
x14 + x24 = 1;
x15 + x25 = 1;
x16 + x26 = 1;
bin x11,x12,x13,x14,x15,x16,x21,x22,x23,x24,x25,x26;

正确：
min: y1-y2; /*出错程序在于缺少冒号*/
y1 = 116 x11 + 82 x12 + 82 x13 + 125 x14 + 83 x15 + 168 x16;
y2 = 116 x21 + 82 x22 + 82 x23 + 125 x24 + 83 x25 + 168 x26;
y1 - y2 >= 0;
x11 + x21 = 1;
x12 + x22 = 1;
x13 + x23 = 1;
x14 + x24 = 1;
x15 + x25 = 1;
x16 + x26 = 1;
bin x11,x12,x13,x14,x15,x16,x21,x22,x23,x24,x25,x26;
将数据 116 82 82 125 83 168分成两组，使得两组数据和之差最小