724. 寻找数组的中心索引

 

 

 

 1 class Solution(object):
 2     def pivotIndex(self, nums):
 3         """
 4         :type nums: List[int]
 5         :rtype: int
 6         """
 7         sumi = 0
 8         s = sum(nums)
 9         for i in range(len(nums)):
10             if 2 * sumi + nums[i] == s:
11                 return i
12             sumi += nums[i]
13         return -1
14 
15 
16 if __name__ == '__main__':
17     solution = Solution()
18     print(solution.pivotIndex([-1, -1, 0, 1, 1, 0]))
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原文地址：https://www.cnblogs.com/panweiwei/p/12800063.html