1502. Can Make Arithmetic Progression From Sequence.cpp

// 1502. Can Make Arithmetic Progression From Sequence

class Solution
{
public:
    bool canMakeArithmeticProgression(vector<int> &arr)
    {

        sort(arr.begin(), arr.end());

        int diff = arr[1] - arr[0];

        if (arr.size() == 2)
            return true;

        for (int i = 2; i < arr.size(); i++)
        {
            if (arr[i] - arr[i - 1] != diff)
                return false;
        }
        return true;
    }
};