1630. Arithmetic Subarrays

https://leetcode.com/problems/arithmetic-subarrays/

Python

class Solution:
    def isArithmetic(self, nums):
        if len(nums) < 2:
            return True

        snums = sorted(nums)
        diff = snums[1] - snums[0]
        for i in range(2, len(snums)):
            if snums[i] - snums[i-1] != diff:
                return False
        return True

    def checkArithmeticSubarrays(self, nums: List[int], l: List[int], r: List[int]) -> List[bool]:
        m = len(l)

        result = []
        for i in range(m):
            result.append(self.isArithmetic(nums[l[i]:r[i]+1]))

        return result