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This method returns the number of times "42" appears at the start or end of the input parameter str. If there are no "42" appearances at the start or end of the string, return 0. If the string starts OR ends in "42" return 1. If the string both starts AND ends in two different copies of "42" return 2. num42Maybe("42") → 1 num42Maybe("4242") → 2 num42Maybe("4") → 0 ...Save, Compile, Run (ctrl-enter) |
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Difficulty: 190
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