当前你的浏览器版本过低,网站已在兼容模式下运行,兼容模式仅提供最小功能支持,网站样式可能显示不正常。
请尽快升级浏览器以体验网站在线编辑、在线运行等功能。

建议使用的浏览器:

谷歌Chrome 火狐Firefox Opera浏览器 微软Edge浏览器 QQ浏览器 360浏览器 傲游浏览器

3178:Different Division

题目描述
Now we will give you a graph, there are many points in the graph. We will choose two different points arbitrarily, and connect them as a line. Please tell us that whether these points (Include the two points referred above) is on the left side of the line, or lying on the line. or on the right side of the line. For example,

There are four points in the graph: A, B, C, D. we connect C and D. Now C and D form a new line “CD”. Obviously, C and D are lying on the line “CD”. A is on the right side of CD, and B is on the left side of CD. What’s more, A is on the left side of line DC, and B is on the right side of line DC. So line “CD” and “DC” are different in this problem;
输入解释
The first line of input is a single integer T, indicating the number of test cases. Then exactly T test cases followed. In each case, the first line contains one integer: N, the number of points. Then N lines followed, each line contains two real numbers X, Y, indicating the coordinates of points. Then one line follows, contains two integers P1 and P2 indicate the P1th point and the P2th point in this case.
1<= T <= 100
2 <= N <= 1000
1<= P1, P2 <= N, P1 != P2
-1000 < X, Y < 1000;
输出解释
For each case, print N lines. According to the order of input, for each point print “Left” if this point is on the left side of line P1P2 , or ”On” if this point is lying on line P1P2 , or ”Right” if this is on the right side of line P1P2.
输入样例
1
4
1 1 
1 2 
3 3 
2 1 
1 3
输出样例
On
Left
On
Right
来自杭电HDUOJ的附加信息
Recommend lcy

该题目是Virtual Judge题目,来自 杭电HDUOJ

源链接: HDU-3178

最后修改于 2020-10-25T23:00:56+00:00 由爬虫自动更新

共提交 0

通过率 --%
时间上限 内存上限
2000/1000MS(Java/Others) 32768/32768K(Java/Others)