Question: C++ Write a function called lastDigit that will return the index of the last digit found inside a string. The function should take as an
C++
Write a function called lastDigit that will return the index of the last digit found inside a string. The function should take as an argument the string to search through and should return the index of where the last digit is located. If the string does not have any digits the lastDigit function should return -1
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