CSc 120: N-grams (List comprehension)
Expected Behavior
Write a Python function
get_ngrams(seq, n) that takes as arguments a string
seq and an integer n, and
returns a set consisting of the n-grams of
seq.
Your solution should use only a list comprehension and
a call to Python's set() function. It should not
use any other control statements—i.e., no if, for, while, or try
statements, except as needed within the list comprehension.
Examples
-
Call: get_ngrams("abcdabcdabcdabc", 3)
Return value: {'bcd', 'abc', 'cda', 'dab'}
-
Call: get_ngrams("aaaaaaaaaaaaaaa", 3)
Return value: {'aaa'}
-
Call: get_ngrams("abcdabcdabcdabc", 5)
Return value: {'bcdab', 'cdabc', 'abcda', 'dabcd'}
-
Call: get_ngrams('a',3)
Return value: set()
This return value denotes the empty set.