Python | Leetcode Python题解之第560题和为K的子数组

题目：

题解：

class Solution:
    def subarraySum(self, nums: List[int], k: int) -> int:
        dic={0:1}
        sums,res=0,0
        for num in nums:
            sums+=num
            res+=dic.get(sums-k,0)
            dic[sums]=dic.get(sums,0)+1
        return res