2023-11-23 10:41:25 +0000 UTC

class Solution {
public:
    bool check(vector<int>& arr) {
        sort(arr.begin(), arr.end());
        int diff = arr[1] - arr[0];
        
        for (int i = 2; i < arr.size(); i++) {
            if (arr[i] - arr[i - 1] != diff) {
                return false;
            }
        }
        
        return true;
    }
    
    vector<bool> checkArithmeticSubarrays(vector<int>& nums, vector<int>& l, vector<int>& r) {
        vector<bool> ans;
        for (int i = 0; i < l.size(); i++) {
            vector<int> arr(begin(nums) + l[i], begin(nums) + r[i] + 1);
            ans.push_back(check(arr));
        }
        
        return ans;
    }
};