Question: The atoi() function takes a string (which represents an integer) as an argument and returns its value. Consider the following two recursive implementations atoiR1 ()

The atoi() function takes a string (which represents an integer) as

The atoi() function takes a string (which represents an integer) as an argument and returns its value. Consider the following two recursive implementations atoiR1 () and atoiR2 (\}). What is the time complexity of ato iR2? O(n) O(2n) O(log(n)) O(n!) O(n2)

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