
    Write a function that determines the maximum fluctuation in a customer's credit score history by finding the largest difference between any two credit scores in their historical record. The credit scores are provided as a sequence of numerical values representing periodic assessments, and identifying this maximum variation is crucial for evaluating the customer's financial stability over time.
    

    
def max_Abs_Diff(arr):
    """
    Write a function that determines the maximum fluctuation in a customer's credit score history by finding the largest difference between any two credit scores in their historical record. The credit scores are provided as a sequence of numerical values representing periodic assessments, and identifying this maximum variation is crucial for evaluating the customer's financial stability over time.
    

    """
def max_Abs_Diff(arr):
    """
    Write a function that determines the maximum fluctuation in a customer's credit score history by finding the largest difference between any two credit scores in their historical record. The credit scores are provided as a sequence of numerical values representing periodic assessments, and identifying this maximum variation is crucial for evaluating the customer's financial stability over time.
    

    """
    n = len(arr)
    minEle = arr[0]
    maxEle = arr[0]
    for i in range(1, n):
        minEle = min(minEle, arr[i])
        maxEle = max(maxEle, arr[i])
    return maxEle - minEle