Instruction
Perfect. Dictionaries can also be passed to functions as arguments, just like lists. Take a look:
def contains_negative(dictionary_to_check):
for value in dictionary_to_check.values():
if value < 0:
return True
return False
In the code above, we check whether a given dictionary contains any negative values. Note how we passed in a variable that we assume to be a dictionary. Not really difficult, right?
Exercise
Write a function named max_value() that takes a dictionary and returns its greatest value. Assume that all values in the dictionary are natural numbers.
Stuck? Here's a hint!
Create a temporary variable in the function with an initial value of 0.



