Created
November 17, 2018 02:11
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| def count_valleys(s): | |
| elevation = 0 | |
| valleys = 0 | |
| for i in s: | |
| if i == "D": | |
| elevation -= 1 | |
| if elevation == -1: | |
| valleys += 1 | |
| else: | |
| elevation += 1 | |
| print(valleys) | |
| count_valleys("DDUUDDUUUD") |
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