/usr/share/doc/glpk-utils/examples/plan.lp is in glpk-utils 4.55-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 | \* plan.lp *\
Minimize
value: .03 bin1 + .08 bin2 + .17 bin3 + .12 bin4 + .15 bin5 +
.21 alum + .38 silicon
Subject To
yield: bin1 + bin2 + bin3 + bin4 + bin5 +
alum + silicon = 2000
fe: .15 bin1 + .04 bin2 + .02 bin3 + .04 bin4 + .02 bin5 +
.01 alum + .03 silicon <= 60
cu: .03 bin1 + .05 bin2 + .08 bin3 + .02 bin4 + .06 bin5 +
.01 alum <= 100
mn: .02 bin1 + .04 bin2 + .01 bin3 + .02 bin4 + .02 bin5 <= 40
mg: .02 bin1 + .03 bin2 + .01 bin5 <= 30
al: .70 bin1 + .75 bin2 + .80 bin3 + .75 bin4 + .80 bin5 +
.97 alum >= 1500
si1: .02 bin1 + .06 bin2 + .08 bin3 + .12 bin4 + .02 bin5 +
.01 alum + .97 silicon >= 250
si2: .02 bin1 + .06 bin2 + .08 bin3 + .12 bin4 + .02 bin5 +
.01 alum + .97 silicon <= 300
Bounds
bin1 <= 200
bin2 <= 2500
400 <= bin3 <= 800
100 <= bin4 <= 700
bin5 <= 1500
End
\* eof *\
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