Question

Write the choose function, which selects which paragraph the user will type. It takes a list of paragraphs (strings), a select function that returns True for paragraphs that can be selected, and a non-negative index k. The choose function return's the kth paragraph for which select returns True. If no such paragraph exists (because k is too large), then choose returns the empty string.

def choose(paragraphs, select, k):
"""Return the Kth paragraph from PARAGRAPHS for which SELECT called on the
paragraph returns true. If there are fewer than K such paragraphs, return
the empty string.
"""
For an example of it working:
>>> from cats import choose
>>> ps = ['short', 'really long', 'tiny']
>>> s = lambda p: len(p) <= 5

>>> choose(ps, s, 0)
'short'
>>> choose(ps, s, 1)
'tiny'

Answer 1

code :

4

output:
z

raw_code:

def choose(paragraphs,select,k):
out = []
for i in paragraphs:
if(select(i)):
out.append(i) #appending if it returns true
if(k<len(out)):
print(out[k]) #printing kth value
else:
print(' ') #printing empty string if k is too large