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 C++14 (GCC 5.4.1) (judge verdict: Wrong Answer)

#include <iostream>
#include <map>
#include <algorithm>
#include <vector>
#include <string>
#include <utility>
#include <queue>
#define INF 1e9+7
#define rep(i,n) for(int i=0;i<n;i++)
#define NO cout<<"NO"<<endl;
#define YES cout << "YES"<<endl;
#define No cout << "No"<<endl;
#define Yes cout << "Yes"<<endl;
#define all(a) a.begin(),a.end()
using namespace std;
typedef long long int ll;
typedef unsigned long long int ull;

class UnionFind {
public:
	//親の番号を格納する。親だった場合は-(その集合のサイズ)
	vector<int> Parent;

	UnionFind(int N) {
		Parent = vector<int>(N, -1);
	}

	//Aがどのグループに属しているか調べる
	int root(int A) {
		if (Parent[A] < 0) return A;
		return Parent[A] = root(Parent[A]);
	}

	//自分のいるグループの頂点数を調べる
	int size(int A) {
		return -Parent[root(A)];
	}

	//AとBをくっ付ける
	bool connect(int A, int B) {
		
		A = root(A);
		B = root(B);
		if (A == B) {
			
			return false;
		}
		if (size(A) < size(B)) swap(A, B);
		
		Parent[A] += Parent[B];
		Parent[B] = A;

		return true;
	}
};

int main() {

	int n, k, l;
	cin >> n >> k >> l;
	UnionFind R(n), T(n);

	rep(i, k) {
		int a, b;
		cin >> a >> b;
		R.connect(a - 1, b - 1);
	}

	rep(i, l) {
		int a, b;
		cin >> a >> b;
		T.connect(a - 1, b - 1);
	}

	map<pair<int, int>, int> mp;

	rep(i, n) {
		cout << R.root(i) <<' '<< T.root(i) << endl;
		mp[pair<int,int>(R.root(i), T.root(i))]++;
	}
	rep(i, n) {
		cout << mp[pair<int,int>(R.root(i), T.root(i))] << " ";
	}
	cout << endl;

	return 0;
}