subpack-glpk
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1 | /* plan.mod */ |
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2 | |
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3 | var bin1, >= 0, <= 200; |
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4 | var bin2, >= 0, <= 2500; |
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5 | var bin3, >= 400, <= 800; |
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6 | var bin4, >= 100, <= 700; |
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7 | var bin5, >= 0, <= 1500; |
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8 | var alum, >= 0; |
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9 | var silicon, >= 0; |
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10 | |
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11 | minimize |
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12 | |
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13 | value: .03 * bin1 + .08 * bin2 + .17 * bin3 + .12 * bin4 + .15 * bin5 + |
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14 | .21 * alum + .38 * silicon; |
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15 | |
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16 | subject to |
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17 | |
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18 | yield: bin1 + bin2 + bin3 + bin4 + bin5 + alum + silicon = 2000; |
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19 | |
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20 | fe: .15 * bin1 + .04 * bin2 + .02 * bin3 + .04 * bin4 + .02 * bin5 + |
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21 | .01 * alum + .03 * silicon <= 60; |
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22 | |
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23 | cu: .03 * bin1 + .05 * bin2 + .08 * bin3 + .02 * bin4 + .06 * bin5 + |
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24 | .01 * alum <= 100; |
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25 | |
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26 | mn: .02 * bin1 + .04 * bin2 + .01 * bin3 + .02 * bin4 + .02 * bin5 |
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27 | <= 40; |
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28 | |
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29 | mg: .02 * bin1 + .03 * bin2 + .01 * bin5 <= 30; |
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30 | |
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31 | al: .70 * bin1 + .75 * bin2 + .80 * bin3 + .75 * bin4 + .80 * bin5 + |
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32 | .97 * alum >= 1500; |
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33 | |
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34 | si: 250 <= .02 * bin1 + .06 * bin2 + .08 * bin3 + .12 * bin4 + |
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35 | .02 * bin5 + .01 * alum + .97 * silicon <= 300; |
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36 | |
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37 | end; |
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38 | |
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39 | /* eof */ |
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