exam0704.ltx

是一种多输出多输入的程序

! Assignment model
! Maximize valve of assignments
max   20x11 + 15x12 + 16x13 +  5x14 +  4x15 +  7x16
    + 17x21 + 15x22 + 33x23 + 12x24 +  8x25 +  6x26
    +  9x31 + 12x32 + 18x33 + 16x34 + 30x35 + 13x36
    + 12x41 +  8x42 + 11x43 + 27x44 + 19x45 + 14x46
    - 99x51 +  7x52 + 10x53 + 21x54 + 10x55 + 32x56
    - 99x61 - 99x62 - 99x63 +  6x64 + 11x65 + 13x66
subject to
! Each person must be assigned to some job
    x11 + x12 + x13 + x14 + x15 + x16  = 1
    x21 + x22 + x23 + x24 + x25 + x26  = 1
    x31 + x32 + x33 + x34 + x35 + x36  = 1
    x41 + x42 + x43 + x44 + x45 + x46  = 1
    x51 + x52 + x53 + x54 + x55 + x56  = 1
    x61 + x62 + x63 + x64 + x65 + x66  = 1
! Each job must receive an assignment
    x11 + x21 + x31 + x41 + x51 + x61  = 1
    x12 + x22 + x32 + x42 + x52 + x62  = 1
    x13 + x23 + x33 + x43 + x53 + x63  = 1
    x14 + x24 + x34 + x44 + x54 + x64  = 1
    x15 + x25 + x35 + x45 + x55 + x65  = 1
    x16 + x26 + x36 + x46 + x56 + x66  = 1
end