------
## 最终结论
```python
def max_Abs_Diff(arr, n):
    max_diff = 0
    min_element = arr[0]
    
    for i in range(n):
        if arr[i] < min_element:
            min_element = arr[i]
        current_diff = arr[i] - min_element
        if current_diff > max_diff:
            max_diff = current_diff
    
    return max_diff

# Test cases
assert max_Abs_Diff((2,1,5,3),4) == 4
assert max_Abs_Diff((9,3,2,5,1),5) == 8
assert max_Abs_Diff((3,2,1),3) == 2
```