Created
February 6, 2012 06:04
-
-
Save daGrevis/1750086 to your computer and use it in GitHub Desktop.
PyQuick: String #1
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
# A. donuts | |
# Given an int count of a number of donuts, return a string | |
# of the form 'Number of donuts: <count>', where <count> is the number | |
# passed in. However, if the count is 10 or more, then use the word 'many' | |
# instead of the actual count. | |
# So donuts(5) returns 'Number of donuts: 5' | |
# and donuts(23) returns 'Number of donuts: many' | |
def donuts(count): | |
if count < 10: | |
return 'Number of donuts: ' + str(count) | |
else: | |
return 'Number of donuts: many' | |
# B. both_ends | |
# Given a string s, return a string made of the first 2 | |
# and the last 2 chars of the original string, | |
# so 'spring' yields 'spng'. However, if the string length | |
# is less than 2, return instead the empty string. | |
def both_ends(s): | |
if len(s) < 2: | |
return '' | |
else: | |
start = s[:2] | |
end = s[-2:] | |
return start + end | |
# C. fix_start | |
# Given a string s, return a string | |
# where all occurences of its first char have | |
# been changed to '*', except do not change | |
# the first char itself. | |
# e.g. 'babble' yields 'ba**le' | |
# Assume that the string is length 1 or more. | |
# Hint: s.replace(stra, strb) returns a version of string s | |
# where all instances of stra have been replaced by strb. | |
def fix_start(s): | |
first = s[0:1] | |
s = s.replace(first, '*') | |
s = s.replace('*', first, 1) | |
return s | |
# D. MixUp | |
# Given strings a and b, return a single string with a and b separated | |
# by a space '<a> <b>', except swap the first 2 chars of each string. | |
# e.g. | |
# 'mix', pod' -> 'pox mid' | |
# 'dog', 'dinner' -> 'dig donner' | |
# Assume a and b are length 2 or more. | |
def mix_up(a, b): | |
new_a = b[:2] + a[2:] | |
new_b = a[:2] + b[2:] | |
return new_a + ' ' + new_b |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Looking for neater ways to do the same. :]