Create sum-of-beauty-in-the-array.py

Author: kamyu104

Python/sum-of-beauty-in-the-array.py

@@ -0,0 +1,20 @@
+# Time:  O(n)
+# Space: O(n)
+
+class Solution(object):
+    def sumOfBeauties(self, nums):
+        """
+        :type nums: List[int]
+        :rtype: int
+        """
+        right = [nums[-1]]*len(nums)
+        for i in reversed(xrange(2, len(nums)-1)):
+            right[i] = min(right[i+1], nums[i])
+        result, left = 0, nums[0]
+        for i in xrange(1, len(nums)-1):
+            if left < nums[i] < right[i+1]:
+                result += 2
+            elif nums[i-1] < nums[i] < nums[i+1]:
+                result += 1
+            left = max(left, nums[i])
+        return result