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 Java8 (OpenJDK 1.8.0) (judge verdict: Accepted)

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.util.*;

public class Main {

    static BufferedReader in;
    static PrintWriter out;
    static StringTokenizer tok;

    void solve() throws IOException {
        int n = ni(), k = ni(), l = ni();

        int[] p = new int[k];
        int[] q = new int[k];
        for (int i = 0; i < k; i++) {
            p[i] = ni() - 1;
            q[i] = ni() - 1;
        }
        int[] r = new int[l];
        int[] s = new int[l];
        for (int i = 0; i < l; i++) {
            r[i] = ni() - 1;
            s[i] = ni() - 1;
        }

        UnionFind uf1 = new UnionFind(n);
        for (int i = 0; i < k; i++) {
            uf1.union(p[i], q[i]);
        }

        UnionFind uf2 = new UnionFind(n);
        for (int i = 0; i < l; i++) {
            uf2.union(r[i], s[i]);
        }

        ArrayList<ArrayList<Integer>> groups = uf2.groups();

        int[] ans = new int[n];

        for (int i = 0; i < groups.size(); i++) {
            ArrayList<Integer> group = groups.get(i);
            Collections.sort(group, (x1, x2) -> uf1.root(x1) - uf1.root(x2));
            for (int j = 0; j < group.size(); j++) {
                int idx = j;
                int cnt = 1;
                while (idx < group.size() - 1 && uf1.isConnected(group.get(j), group.get(idx + 1))) {
                    idx++;
                    cnt++;
                }
                for (int m = j; m <= idx; m++) {
                    ans[group.get(m)] = cnt;
                }
                j = idx;
            }
        }

        for (int i = 0; i < n; i++) {
            if (i > 0) out.print(" ");
            out.print(ans[i]);
        }
        out.println();
    }

    class UnionFind {
        private int[] parent;

        UnionFind(int size) {
            parent = new int[size];
            Arrays.fill(parent, -1);
        }

        public boolean union(int x, int y) {
            x = root(x);
            y = root(y);
            if (x != y) {
                if (parent[y] < parent[x]) {
                    int tmp = y;
                    y = x;
                    x = tmp;
                }
                parent[x] += parent[y];
                parent[y] = x;
                return true;
            }
            return false;
        }

        public boolean isConnected(int x, int y) {
            return root(x) == root(y);
        }

        public int root(int x) {
            return parent[x] < 0 ? x : (parent[x] = root(parent[x]));
        }

        public int size(int x) {
            return -parent[root(x)];
        }

        public ArrayList<ArrayList<Integer>> groups() {
            int n = parent.length;
            ArrayList<ArrayList<Integer>> g = new ArrayList<>();
            HashMap<Integer, Integer> hm = new HashMap<>();
            for (int i = 0; i < n; i++) {
                int r = root(i);
                if (!hm.containsKey(r)) {
                    hm.put(r, g.size());
                    g.add(new ArrayList<>());
                }
                g.get(hm.get(r)).add(i);
            }
            return g;
        }

        public String toString() {
            return Arrays.toString(parent);
        }
    }

    String ns() throws IOException {
        while (!tok.hasMoreTokens()) {
            tok = new StringTokenizer(in.readLine(), " ");
        }
        return tok.nextToken();
    }

    int ni() throws IOException {
        return Integer.parseInt(ns());
    }

    long nl() throws IOException {
        return Long.parseLong(ns());
    }

    double nd() throws IOException {
        return Double.parseDouble(ns());
    }

    String[] nsa(int n) throws IOException {
        String[] res = new String[n];
        for (int i = 0; i < n; i++) {
            res[i] = ns();
        }
        return res;
    }

    int[] nia(int n) throws IOException {
        int[] res = new int[n];
        for (int i = 0; i < n; i++) {
            res[i] = ni();
        }
        return res;
    }

    long[] nla(int n) throws IOException {
        long[] res = new long[n];
        for (int i = 0; i < n; i++) {
            res[i] = nl();
        }
        return res;
    }

    public static void main(String[] args) throws IOException {
        in = new BufferedReader(new InputStreamReader(System.in));
        out = new PrintWriter(System.out);
        tok = new StringTokenizer("");
        Main main = new Main();
        main.solve();
        out.close();
    }
}