Problem:
Score : 400 points

Problem Statement

There are N cities. There are also K roads and L railways, extending between the cities.
The i-th road bidirectionally connects the p_i-th and q_i-th cities, and the i-th railway bidirectionally connects the r_i-th and s_i-th cities.
No two roads connect the same pair of cities. Similarly, no two railways connect the same pair of cities.

We will say city A and B are connected by roads if city B is reachable from city A by traversing some number of roads. Here, any city is considered to be connected to itself by roads.
We will also define connectivity by railways similarly.

For each city, find the number of the cities connected to that city by both roads and railways.

Constraints

2 ≦ N ≦ 2*10^5

1 ≦ K, L≦ 10^5

1 ≦ p_i, q_i, r_i, s_i ≦ N

p_i < q_i

r_i < s_i

When i ≠ j, (p_i, q_i) ≠ (p_j, q_j)

When i ≠ j, (r_i, s_i) ≠ (r_j, s_j)

Input

The input is given from Standard Input in the following format:

N K L
p_1 q_1
:
p_K q_K
r_1 s_1
:
r_L s_L

Output

Print N integers. The i-th of them should represent the number of the cities connected to the i-th city by both roads and railways.

Sample Input 1

4 3 1
1 2
2 3
3 4
2 3

Sample Output 1

1 2 2 1

All the four cities are connected to each other by roads.

By railways, only the second and third cities are connected. Thus, the answers for the cities are 1, 2, 2 and 1, respectively.

Sample Input 2

4 2 2
1 2
2 3
1 4
2 3

Sample Output 2

1 2 2 1

Sample Input 3

7 4 4
1 2
2 3
2 5
6 7
3 5
4 5
3 4
6 7

Sample Output 3

1 1 2 1 2 2 2

Solution in Rust (1.15.1) (judge verdict: Time Limit Exceeded)

use std::collections::HashMap;
use std::collections::HashSet;

pub fn read1<T: std::str::FromStr>() -> T {
    let mut s = String::new();
    std::io::stdin().read_line(&mut s).ok();
    s.trim().parse().ok().unwrap()
}

pub fn readn<T: std::str::FromStr>(delimiter: &str) -> Vec<T> {
    let s = read1::<String>();
    s.split(delimiter).map(|e| e.parse().ok().unwrap()).collect::<Vec<T>>()
}

pub struct UnionFind {
    pub par: Vec<usize>,
    pub rank: Vec<usize>,
}

impl UnionFind {
    pub fn new(n: usize) -> UnionFind {
        let par = (0..n).collect::<Vec<usize>>();
        let rank = vec![0; n];
        UnionFind { par: par, rank: rank }
    }

    pub fn root(&mut self, x: usize) -> usize {
        let cand = self.par[x];
        if cand == x {
            return x;
        } else {
            let ret = self.root(cand);
            self.par[x] = ret;
            return ret;
        }
    }

    pub fn same(&mut self, x: usize, y: usize) -> bool {
        self.root(x) == self.root(y)
    }

    pub fn unite(&mut self, x: usize, y: usize) {
        let root_x = self.root(x);
        let root_y = self.root(y);
        if root_x == root_y { return; }

        if self.rank[root_x] < self.rank[root_y] {
            self.par[root_x] = self.par[root_y];
        } else {
            self.par[root_y] = self.par[root_x];
            if self.rank[root_y] == self.rank[root_x] {
                self.rank[root_x] += 1;
            }
        }
    }
}

fn main() {
    let nkl = readn::<usize>(" ");
    let n = nkl[0];
    let k = nkl[1];
    let l = nkl[2];

    let mut uf1 = UnionFind::new(n);
    let mut uf2 = UnionFind::new(n);
    let mut dict1 = HashMap::new();
    let mut dict2 = HashMap::new();
    
    for _ in 0..k {
        let pq = readn::<usize>(" ");
        uf1.unite(pq[0]-1, pq[1]-1);
    }
    let root1 = (0..n).map(|i| uf1.root(i)).collect::<Vec<usize>>();
    for (i, &r) in root1.iter().enumerate() {
        let set = dict1.entry(r).or_insert(HashSet::new());
        (*set).insert(i);
    }

    for _ in 0..l {
        let pq = readn::<usize>(" ");
        uf2.unite(pq[0]-1, pq[1]-1);
    }
    let root2 = (0..n).map(|i| uf2.root(i)).collect::<Vec<usize>>();
    for (i, &r) in root2.iter().enumerate() {
        let set = dict2.entry(r).or_insert(HashSet::new());
        (*set).insert(i);
    }

    let mut ans = String::new();
    for i in 0..n {
        let g1 = root1[i];
        let g2 = root2[i];
        let s1 = &dict1[&g1];
        let s2 = &dict2[&g2];
        let inter = s1.intersection(s2).collect::<Vec<&usize>>();
        let add = inter.len().to_string();
        ans += &add;
        ans += " ";
    }
    println!("{}", ans);
}