
    Given a sequence of delivery efficiency scores collected along a route, find the highest possible delivery performance rating by multiplying scores from time periods where conditions progressively improved. The efficiency scores factor in traffic flow, weather conditions, and road accessibility, and you must select scores that form a strictly increasing sequence to calculate the maximum product.
    

    
def max_product(arr):
    """
    Given a sequence of delivery efficiency scores collected along a route, find the highest possible delivery performance rating by multiplying scores from time periods where conditions progressively improved. The efficiency scores factor in traffic flow, weather conditions, and road accessibility, and you must select scores that form a strictly increasing sequence to calculate the maximum product.
    

    """
def max_product(arr):
    """
    Given a sequence of delivery efficiency scores collected along a route, find the highest possible delivery performance rating by multiplying scores from time periods where conditions progressively improved. The efficiency scores factor in traffic flow, weather conditions, and road accessibility, and you must select scores that form a strictly increasing sequence to calculate the maximum product.
    

    """
    n = len(arr)
    mpis = arr[:]
    for i in range(n):
        current_prod = arr[i]
        j = i + 1
        while j < n:
            if arr[j - 1] > arr[j]:
                break
            current_prod *= arr[j]
            if current_prod > mpis[j]:
                mpis[j] = current_prod
            j = j + 1
    return max(mpis)