Codeforces Round 203 (Div. 2)
D
Looking for Owls
Codeforces
2400
原题
← CE →
翻译中…

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.

翻译中…

Palpatine defines an owl as a set of a pair of distinct circles $(*i*, *j*)$ ($*i* < *j*$) and one segment $*k*$, such that:

翻译中…
  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 $*j*$.
翻译中…

Help Palpatine, count the number of distinct owls on the picture.

翻译中…

Input

翻译中…

The first line contains two integers — $*n*$ and $*m*$ ($1 ≤ *n* ≤ 3·10^{5}$, $2 ≤ *m* ≤ 1500$).

翻译中…

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.

翻译中…

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 $10^{4}$.

翻译中…

It is guaranteed that all segments and all circles are dictinct.

翻译中…

Output

翻译中…

Print a single number — the answer to the problem.

翻译中…

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.

翻译中…

Note

翻译中…

Here's an owl from the first sample. The owl is sitting and waiting for you to count it.

翻译中…

image

翻译中…

样例

Input #1
1 2
3 2 3 -2
0 0 2
6 0 2
Output #1
1
InputCopy OutputCopy
Input #2
3 2
0 0 0 1
0 -1 0 1
0 -1 0 0
2 0 1
-2 0 1
Output #2
3
InputCopy OutputCopy
Input #3
1 2
-1 0 1 0
-100 0 1
100 0 1
Output #3
0
InputCopy OutputCopy
题目信息
题号
350D
时间限制
2 s
内存限制
256 MB
标签
二分
数据结构
计算几何
哈希
排序

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