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LeetCode 1480. Running Sum of 1d Array

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1480. Running Sum of 1d Array

リストが与えられていて、返り値もリストで返す。
返すリストのi番目の要素は、与えられているリストのi番目以前の要素の和

class Solution:
    def runningSum(self, nums: List[int]) -> List[int]:
        num_list = []
        for i in range(1,len(nums)+1):
            num_list.append(sum(nums[0:i]))
        return num_list

他の方の回答を見て、sum使わなくてもできることに気付いた。

num_list[i] = num_list[i-1]

という感じにできるよなぁと

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