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Tatiana [17]
2 years ago
13

Write a Python program to solve the problem described above. Define a function satisfactory_meal(Meal) which takes a single para

meter, Meal, and returns True or False. Meal is a list of lists of the form [Dish_number, Organic, Has_dairy, Has_meat, Locally_sourced] where the Dish_number is a positive integer and the other list items are 1 or 0. The function should return True if the meal is satisfactory, and should return False otherwise. You may assume that the Meal list will be in the correct format when the function is called; you do not have to error-check for a non-list or an incorrectly formed list. The dishes in list Meal are not necessarily sorted by dish numbers or any other order. In your program, you may write and call any additional functions that are helpful in the computation. Examples: satisfactory_meal([ [8, 0, 0, 0, 1], [9, 1, 1, 0, 1], [23, 1, 0, 0, 1], [2, 1, 0, 1, 0], [6, 0, 0, 1, 1] ]) should return True, satisfactory_meal([ [4, 1, 0, 0, 0], [7, 0, 1, 0, 1], [90, 0, 0, 0, 0], [3, 0, 0, 1, 1] ]) should return False, and satisfactory_meal([ ]) should return False.
Computers and Technology
1 answer:
kompoz [17]2 years ago
3 0

def dx(fn, x, delta=0.001):

   return (fn(x+delta) - fn(x))/delta

def solve(fn, value, x=0.5, maxtries=1000, maxerr=0.00001):

   for tries in xrange(maxtries):

       err = fn(x) - value

       if abs(err) < maxerr:

           return x

       slope = dx(fn, x)

       x -= err/slope

   raise ValueError('no solution found')

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