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# Problem B

Line Segment Distance

## Input

The first line of input contains an integer $n$ ($n \leq 10000$) giving the number of test cases. Then follow $n$ lines each containing 8 integers $x_1\ y_1\ x_2\ y_2\ x_3\ y_3\ x_4\ y_4$, indicating a line segment from $(x_1, y_1)$ to $(x_2, y_2)$, and a line segment from $(x_3, y_3)$ to $(x_4, y_4)$. Coordinates have absolute value at most 10000.

## Output

For each test case, output the distance between the two line segments with 2 decimals of precision.

Sample Input 1 | Sample Output 1 |
---|---|

5 -10 0 10 0 0 -10 0 10 -10 0 10 0 -5 0 5 0 1 1 1 1 1 1 2 1 1 1 1 1 2 1 2 1 1871 5789 216 -517 189 -1518 3851 1895 |
0.00 0.00 0.00 1.00 713.86 |

CPU Time limit
1 second

Memory limit
1024 MB

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KTH CSC Popup 2005