Display values and how many times they occured using a Dictionary
- by user1730056
I've been told to
By using a dictionary (or your solution to Part 4), write a method
at_least(a, n) that takes a list, a, and an integer, n, as arguments
and returns a list containing only the elements of a that occur at
least n times. For complete marks, the list should contain the
elements in order of their first occurrence in a.
I was able to figure this without using a dictionary, with
def at_least2(a, n):
return [x for x in a if a.count(x) is n]
I was wondering how I can write this using a dictionary?
The input is:
a = [-6, 8, 7, 3, 2, -9, 1, -3, 2, -4, 4, -8, 7, 8, 2, -2, -7, 0, 1,
-9, -3, -7, -3, -5, 6, -3, 6, -3, -10, -8]
def at_least(a, 2):
and the output:
[8, 7, 2, -9, 1, -3, 2, -8, 7, 8, 2, -7, 1, -9, -3, -7, -3, 6, -3, 6, -3, -8]
Edit:
I don't understand how a dictionary is being used, yet the output isn't in dictionary form? My understanding is that dictionaries have values for each object. I'm not sure if I'm using the right terms.
