LeetCode 面试题 17.14. 最小K个数

输入： arr = [1,3,5,7,2,4,6,8], k = 4
输出： [1,2,3,4]
提示：

class Solution:
    def smallestK(self, arr: List[int], k: int) -> List[int]:
        arr.sort()
        return arr[:k]

if __name__ == '__main__':
    arr = [1,3,5,7,2,4,6,8]
    k = 4
    ret = Solution().smallestK(arr, k)
    print(ret)