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pais@kinetigram.com recursion01 > R19_countHi2
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APCS Recursion 1, Problem 9. Given a string, compute recursively the number of times lowercase "hi" appears in the string, however do not count "hi" that have an 'x' immedately before them.


R19_countHi2("ahixhi") → 1
R19_countHi2("ahibhi") → 2
R19_countHi2("xhixhi") → 0

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public int R19_countHi2(String str) { }

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