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convert using indices of a full-alphabet string solution in Clear category for Caesar Cipher (encryptor) by emersonreiter
def to_encrypt(text, delta):
alphabet = 'abcdefghijklmnopqrstuvwxyz'
result = ''
for char in text:
if char in alphabet:
old_ind = alphabet.find(char)
new_ind = (old_ind + delta) % 26 # needed to handle new_ind values greater than 26, allows it to "wrap"
result = result + alphabet[new_ind]
else:
result = result + ' '
return result
if __name__ == '__main__':
print("Example:")
print(to_encrypt('abc', 10))
#These "asserts" using only for self-checking and not necessary for auto-testing
assert to_encrypt("a b c", 3) == "d e f"
assert to_encrypt("a b c", -3) == "x y z"
assert to_encrypt("simple text", 16) == "iycfbu junj"
assert to_encrypt("important text", 10) == "swzybdkxd dohd"
assert to_encrypt("state secret", -13) == "fgngr frperg"
print("Coding complete? Click 'Check' to earn cool rewards!")
Aug. 20, 2018
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