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First solution in Creative category for The Most Wanted Letter by DanielDou
# migrated from python 2.7
# From Daniel Dou with love...
def checkio(x):
x = x.lower()
maximum = max([x.count(i) for i in set(x) if i.isalpha()])
candidates = [j for j in x if x.count(j) == maximum and j.isalpha()]
return sorted(candidates)[0]
#These "asserts" using only for self-checking and not necessary for auto-testing
if __name__ == '__main__':
assert checkio("Hello World!") == "l", "Hello test"
assert checkio("How do you do?") == "o", "O is most wanted"
assert checkio("One") == "e", "All letter only once."
assert checkio("Oops!") == "o", "Don't forget about lower case."
assert checkio("AAaooo!!!!") == "a", "Only letters."
Feb. 22, 2014
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