A9256 | Looking for Owls
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内存限制256MB
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题目描述
Emperor Palpatine loves owls very much. The emperor has some blueprints with the new Death Star, the blueprints contain $n$ distinct segments and $m$ distinct circles. We will consider the segments indexed from $1$ to $n$ in some way and the circles — indexed from $1$ to $m$ in some way.
Palpatine defines an owl as a set of a pair of distinct circles $(i,j)$ ( $i<j$ ) and one segment $k$ , such that:
1. circles $i$ and $j$ are symmetrical relatively to the straight line containing segment $k$ ;
2. circles $i$ and $j$ don't have any common points;
3. circles $i$ and $j$ have the same radius;
4. segment $k$ intersects the segment that connects the centers of circles $i$ and $j$ .
Help Palpatine, count the number of distinct owls on the picture.
Palpatine defines an owl as a set of a pair of distinct circles $(i,j)$ ( $i<j$ ) and one segment $k$ , such that:
1. circles $i$ and $j$ are symmetrical relatively to the straight line containing segment $k$ ;
2. circles $i$ and $j$ don't have any common points;
3. circles $i$ and $j$ have the same radius;
4. segment $k$ intersects the segment that connects the centers of circles $i$ and $j$ .
Help Palpatine, count the number of distinct owls on the picture.
输入格式
The first line contains two integers — $n$ and $m$ ( $1<=n<=3·10^{5}$ , $2<=m<=1500$ ).
The next $n$ lines contain four integers each, $x_{1}$ , $y_{1}$ , $x_{2}$ , $y_{2}$ — the coordinates of the two endpoints of the segment. It's guaranteed that each segment has positive length.
The next $m$ lines contain three integers each, $x_{i}$ , $y_{i}$ , $r_{i}$ — the coordinates of the center and the radius of the $i$ -th circle. All coordinates are integers of at most $10^{4}$ in their absolute value. The radius is a positive integer of at most $10^{4}$ .
It is guaranteed that all segments and all circles are dictinct.
The next $n$ lines contain four integers each, $x_{1}$ , $y_{1}$ , $x_{2}$ , $y_{2}$ — the coordinates of the two endpoints of the segment. It's guaranteed that each segment has positive length.
The next $m$ lines contain three integers each, $x_{i}$ , $y_{i}$ , $r_{i}$ — the coordinates of the center and the radius of the $i$ -th circle. All coordinates are integers of at most $10^{4}$ in their absolute value. The radius is a positive integer of at most $10^{4}$ .
It is guaranteed that all segments and all circles are dictinct.
输出格式
Print a single number — the answer to the problem.
Please, do not use the %lld specifier to output 64-bit integers is С++. It is preferred to use the cout stream or the %I64d specifier.
Please, do not use the %lld specifier to output 64-bit integers is С++. It is preferred to use the cout stream or the %I64d specifier.
输入输出样例
输入 #1
1 2 3 2 3 -2 0 0 2 6 0 2
输出 #1
1
输入 #2
3 2 0 0 0 1 0 -1 0 1 0 -1 0 0 2 0 1 -2 0 1
输出 #2
3
输入 #3
1 2 -1 0 1 0 -100 0 1 100 0 1
输出 #3
0
Here's an owl from the first sample. The owl is sitting and waiting for you to count it.


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评测结果:Accepted