public class Solution {
    public bool ContainsNearbyAlmostDuplicate(int[] nums, int k, int t) {
       if(k==0) return false;
        if(k>nums.Length) return true;
        for(int i=0;i<nums.Length;i++)
        {
            int varK = 1;
            while(varK <= k)
            {
                if(i+varK < nums.Length)
                {

                        if((nums[i]-nums[i+varK]) > 0)
                        {
                           if((nums[i]-nums[i+varK]) <= t)
                               return true;
                        }
                        else if((nums[i+varK]-nums[i]) <= t)
                            return true;

                }
                varK++;
            }
        }
        return false;
    }
}