CodingBat allungaA

allungaA

aaallungaaa
Data una stringa s, ed un numero naturale n, costruire una nuova stringa in cui tutte le A, maiuscole ed anche minuscole, si moltiplicano n volte.

allungaA("Axa", 2) → "AAxaa"
allungaA("ciao", 1) → "ciao"
allungaA("ciao", 3) → "ciaaao"

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