运筹学讲义 min 2= h+∑hy+∑∑ st a1,=1,2 ∑∑∑ xu=by,j=1, 2, y x20,=12,…m,j=1,2 注:混合整数规划.运 筹 学 讲 义 4                   = = = = = = = = = = = + +       = = = = = = = x i m j n y j n x by j n x b y st x a i m z h h y c x j j j m i ij m i i n j j i n j ij m i n j ij ij n j j j 0, 1,2, , , 1,2, , 0,1, 1,2, , , 1,2, , 1 . . , 1,2, , min 1 0 1 0 1 1 1 1 0 0      .▌ 注：混合整数规划