* Done with "1991. Find the Middle Index in Array".

garciparedes · garciparedes · commit be1d0057a839 · 2022-04-15T21:03:36.000+02:00
diff --git a/problems/1991_find_the_middle_index_in_array.py b/problems/1991_find_the_middle_index_in_array.py
@@ -0,0 +1,9 @@
+class Solution:
+    def findMiddleIndex(self, nums: List[int]) -> int:
+        total = sum(nums)
+        current = 0
+        for i in range(len(nums)):
+            current += nums[i]
+            if current - nums[i] == total - current:
+                return i
+        return -1
