Create sum-of-absolute-differences-in-a-sorted-array.py

Author: kamyu104

Python/sum-of-absolute-differences-in-a-sorted-array.py

@@ -0,0 +1,16 @@
+# Time:  O(n)
+# Space: O(1)
+
+class Solution(object):
+    def getSumAbsoluteDifferences(self, nums):
+        """
+        :type nums: List[int]
+        :rtype: List[int]
+        """
+        prefix, suffix = 0, sum(nums)
+        result = []
+        for i, num in enumerate(nums):
+            suffix -= num
+            result.append((i*num-prefix) + (suffix-((len(nums)-1)-i)*num))
+            prefix += num
+        return result