Leetcode 1752 Solution

This article provides solution to leetcode question 1752 (arithmetic-subarrays)
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https://leetcode.com/problems/arithmetic-subarrays

Solution

class Solution:
    def checkArithmeticSubarrays(self, nums: List[int], l: List[int], r: List[int]) -> List[bool]:
        ans = []

        for i, j in zip(l, r):
            subnums = nums[i:j + 1]
            subnums.sort()

            for k in range(2, len(subnums)):
                if subnums[k] - subnums[k - 1] != subnums[k - 1] - subnums[k - 2]:
                    ans.append(False)
                    break
            else:
                ans.append(True)

        return ans