SJSU Weekly Practice Problems 1/2

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2022-01-02 20:00 AKST

## SJSU Weekly Practice Problems 1/2

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2022-01-09 20:00 AKST
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# Problem KPoint in Polygon

## Input

Input contains several test cases. Each test case begins with an integer $n$ ($3 \leq n \leq 1000$). Then follow the $n$ vertices of a simple polygon, one per line, each of the form $x\ y$. The points may be given in either clockwise or counterclockwise order. Then comes an integer $m$ ($m \leq 100$), giving the number of points to test, followed by $m$ lines, each containing a point in the same format as above. Coordinates are integers with absolute value bounded by 10000. The input is terminated by a case beginning with 0.

## Output

For each test case, output $m$ lines, one for each point to test. The $i$:th output for a test case should be one of “in”, “out”, “on”, depending on whether the $i$:th test point lies inside, outside, or on the given polygon.

Sample Input 1 Sample Output 1
3
0 0
10 0
0 10
3
4 5
5 5
6 5
5
41 -6
-24 -74
-51 -6
73 17
-30 -34
2
-12 -26
39 -8
0

in
on
out
out
in