力扣724. 寻找数组的中心索引

原题

1 class Solution:
2     def pivotIndex(self, nums: List[int]) -> int:
3         s = sum(nums)
4         left = 0
5         for i,num in enumerate(nums):
6             if 2 * left == s - num:return i
7             left += num
8         return -1

标签：return,nums,int,力扣,索引,724,num,enumerate,left
来源： https://www.cnblogs.com/lj95/p/14341583.html