!ENCE 360, Assignment LP, LINDO formulation
!Dr. Steven A. Gabriel
min 200x11 + 400x12 + 500x13 + 100x14  + 400x15+  
    400x21 + 700x22 + 800x23 + 1100x24 + 500x25+
    300x31 + 900x32 + 800x33 + 1000x34 + 500x35+  
    100x41 + 300x42 + 500x43 + 100x44  + 400x45+
    700x51 + 100x52 + 200x53 + 100x54  + 200x55
s.t.
x11+x12+x13+x14+x15=1  ! worker 1
x21+x22+x23+x24+x25=1  ! worker 2
x31+x32+x33+x34+x35=1  ! worker 3
x41+x42+x43+x44+x45=1  ! worker 4
x51+x52+x53+x54+x55=1  ! worker 5
x11+x21+x31+x41+x51=1  ! task 1
x12+x22+x32+x42+x52=1  ! task 2
x13+x23+x33+x43+x53=1  ! task 3
x14+x24+x34+x44+x54=1  ! task 4
x15+x25+x35+x45+x55=1  ! task 5
end
! nonnegative variables assumed