SecondIndex.c clear solution for Second Index by trudnopodobny - python coding challenges

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SecondIndex.c solution in Clear category for Second Index by trudnopodobny

def second_index(text: str, symbol: str) -> [int, None]:
    
    if text.count(symbol) < 2:
        return None
    first = text.find(symbol)
    
    return text.find(symbol, first + 1)

Oct. 4, 2018

Comments:

skytomba on Dec. 26, 2018, 6:26 p.m.
<p>nice readable code. just an idea regarding optimization: 1) text.count call can be removed, instead you can use the fact that text.find returns -1 when sub-string is not found 2) to remove conditional operator - you can use text.index instead of text.find and catch ValueError </p>

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