SP1442 CHAIN - Strange Food Chain
Description
There are 3 kinds of animals A,B and C. A can eat B,B can eat C,C can eat A. It's interesting,isn't it?
Now we have n animals,numbered from 1 to n. Each of them is one of the 3 kinds of animals:A,B,C.
Today Mary tells us k pieces of information about these n animals. Each piece has one of the two forms below:
- 1 x y: It tells us the kind of x and y are the same.
- 2 x y: It tells us x can eat y.
Some of these k pieces are true, some are false. The piece is false if it satisfies one of the 3 conditions below, otherwise it's true.
- X or Y in this piece is larger than n.
- This piece tells us X can eat X.
- This piece conflicts to some true piece before.
Input Format
The first line contains a single integer t.t blocks follow.
To every block,the first line contains two integers n(1
Output Format
t lines,each contains a single integer - the number of false pieces in the corresponding block.
Explanation/Hint
Hint:
The false pieces are the 1st,the 4th and the 5th ones.
**Warning: large Input/Output data, be careful with certain languages.**