Class Diet


public class Diet extends ExampleFD
It specifies a simple diet problem.

Problem from http://www.mcs.vuw.ac.nz/courses/OPRE251/2006T1/Labs/lab09.pdf

My diet requires that all the food I eat come from one of the four .basic food groups. (chocolate cake, ice cream, soft drink, and cheesecake). Each (large) slice of chocolate cake costs 50c, each scoop of chocolate ice cream costs 20c, each bottle of cola costs 30c, and each piece of pineapple cheesecake costs 80c.

Each day, I must ingest at least 500 calories, 6 oz of chocolate, 10 oz of sugar, and 8 oz of fat. The nutritional content per unit of each food is shown in the table below.

Formulate a linear programming model that can be used to satisfy my daily nutritional requirement at minimum cost.

Type of Calories Chocolate Sugar Fat Food (ounces) (ounces) (ounces) Chocolate Cake (1 slice) 400 3 2 2 Chocolate ice cream (1 scoop) 200 2 2 4 Cola (1 bottle) 150 0 4 1 Pineapple cheesecake (1 piece) 500 0 4 5

"""

Version:
4.9

Compare with my MiniZinc model: http://www.hakank.org/minizinc/diet1.mzn

  • Field Details

    • x

      public IntVar[] x
    • n

      public int n
    • m

      public int m
    • food

      public String[] food
    • ingredients

      public String[] ingredients
    • price

      public int[] price
    • limits

      public int[] limits
    • matrix

      public int[][] matrix
  • Constructor Details

    • Diet

      public Diet()
  • Method Details

    • model

      public void model()
      Imposes the model of the problem.
      Specified by:
      model in class ExampleFD
    • modelKnapsack

      public void modelKnapsack()
      Imposes the model of the problem.
    • printLastSolution

      public static void printLastSolution(Diet diet)
    • main

      public static void main(String[] args)
      It executes the program optimizing the diet.
      Parameters:
      args - no argument is used.