#229. countHi2
countHi2
Background
Description
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.
Format
Input
Output
Samples
ahixhi
1
ahibhi
2
xhixhi
0
Limitation
1s, 1024KiB for each test case.