2562.Find the series of the array
topic:
2562.Find the series of the array.md
Thought:
This question andquiz4very similar,都是Double pointer。
I made a mistake when I did this question,When calculating the right pointer, the negative index is calculatedright = -left + 1,It is difficult to calculate the relationship between positive indexes,So replacedright = len(nums) - 1 - left。
Code:
class Solution:
def findTheArrayConcVal(self, nums: List[int]) -> int:
sums = 0
for left in range(len(nums)):
right = len(nums) - 1 - left
if left == right:
sums += nums[left]
break
elif left < right:
sums += int(str(nums[left]) + str(nums[right]))
return sums贡献者
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