题目描述
Problem Statement
There are N ropes numbered 1 through N. One end of each rope is painted red, and the other is painted blue.
You are going to perform M operations of tying ropes. In the i-th operation, you tie the end of rope A_i painted B_i with the end of rope C_i painted D_i, where R means red and B means blue. For each rope, an end with the same color is not tied multiple times.
Find the number of groups of connected ropes that form cycles, and the number of those that do not, after all the operations.
Here, a group of connected ropes $\lbrace v_0, v_1, \ldots, v_{x-1} \rbrace$ is said to form a cycle if one can rearrange the elements of v so that, for each $0 \leq i < x, rope v_i$ is tied to rope $v_{(i+1) \bmod x}$.
Input
The input is given from Standard Input in the following format:
N M
A_1 B_1 C_1 D_1
A_2 B_2 C_2 D_2
$\vdots$
A_M B_M C_M D_M
Output
Print X and Y in this order, separated by a space, where X is the number of groups of connected ropes that form cycles, and Y is the number of those that do not.
Constraints
- $1 \leq N \leq 2 \times 10^5$
- $0 \leq M \leq 2 \times 10^5$
- $1 \leq A_i, C_i \leq N$
- $(A_i, B_i) \neq (A_j, B_j), (C_i, D_i) \neq (C_j, D_j) (i \neq j)$
- $(A_i, B_i) \neq (C_j, D_j)$
- N, M, A_i, and C_i are integers.
- B_i is R or B, and so is D_i.
Sample Input 1
5 3
3 R 5 B
5 R 3 B
4 R 2 B
Sample Output 1
1 2
There are three groups of connected ropes: $\lbrace 1 \rbrace, \lbrace 2,4 \rbrace$, and $\lbrace 3,5 \rbrace$.
The group of ropes $\lbrace 3,5 \rbrace forms a$ cycle, while the groups of rope $\lbrace 1 \rbrace$ and ropes $\lbrace 2,4 \rbrace$ do not. Thus, X = 1 and Y = 2.
Sample Input 2
7 0
Sample Output 2
0 7
Sample Input 3
7 6
5 R 3 R
7 R 4 R
4 B 1 R
2 R 3 B
2 B 5 B
1 B 7 B
Sample Output 3
2 1
输入格式
见题面 Input 部分
输出格式
见题面 Output 部分