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Find peak element.py #497

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18 changes: 18 additions & 0 deletions Find peak element.py
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Original file line number Diff line number Diff line change
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https://leetcode.com/problems/find-peak-element/
def findPeakElement(self, nums):
left = 0
right = len(nums)-1

# handle condition 3
while left < right-1:
mid = (left+right)/2
if nums[mid] > nums[mid+1] and nums[mid] > nums[mid-1]:
return mid

if nums[mid] < nums[mid+1]:
left = mid+1
else:
right = mid-1

#handle condition 1 and 2
return left if nums[left] >= nums[right] else right