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david.white@denison.edu cs112fall2015 > double_char
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Given a string, return a string where for every char in the original, there are two chars.


double_char('The') → 'TThhee'
double_char('AAbb') → 'AAAAbbbb'
double_char('Hi-There') → 'HHii--TThheerree'

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def double_char(str):

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Difficulty: 203.0 Post-solution available

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