Problem:
Score : 400 points

Problem Statement

An SNS has N users - User 1, User 2, \cdots, User N.

Between these N users, there are some relationships - M friendships and K blockships.

For each i = 1, 2, \cdots, M, there is a bidirectional friendship between User A_i and User B_i.

For each i = 1, 2, \cdots, K, there is a bidirectional blockship between User C_i and User D_i.

We define User a to be a friend candidate for User b when all of the following four conditions are satisfied:

a \neq b.

There is not a friendship between User a and User b.

There is not a blockship between User a and User b.

There exists a sequence c_0, c_1, c_2, \cdots, c_L consisting of integers between 1 and N (inclusive) such that c_0 = a, c_L = b, and there is a friendship between User c_i and c_{i+1} for each i = 0, 1, \cdots, L - 1.

For each user i = 1, 2, ... N, how many friend candidates does it have?

Constraints

All values in input are integers.

2 ≤ N ≤ 10^5

0 \leq M \leq 10^5

0 \leq K \leq 10^5

1 \leq A_i, B_i \leq N

A_i \neq B_i

1 \leq C_i, D_i \leq N

C_i \neq D_i

(A_i, B_i) \neq (A_j, B_j) (i \neq j)

(A_i, B_i) \neq (B_j, A_j)

(C_i, D_i) \neq (C_j, D_j) (i \neq j)

(C_i, D_i) \neq (D_j, C_j)

(A_i, B_i) \neq (C_j, D_j)

(A_i, B_i) \neq (D_j, C_j)

Input

Input is given from Standard Input in the following format:

N M K
A_1 B_1
\vdots
A_M B_M
C_1 D_1
\vdots
C_K D_K

Output

Print the answers in order, with space in between.

Sample Input 1

4 4 1
2 1
1 3
3 2
3 4
4 1

Sample Output 1

0 1 0 1

There is a friendship between User 2 and 3, and between 3 and 4. Also, there is no friendship or blockship between User 2 and 4. Thus, User 4 is a friend candidate for User 2.

However, neither User 1 or 3 is a friend candidate for User 2, so User 2 has one friend candidate.

Sample Input 2

5 10 0
1 2
1 3
1 4
1 5
3 2
2 4
2 5
4 3
5 3
4 5

Sample Output 2

0 0 0 0 0

Everyone is a friend of everyone else and has no friend candidate.

Sample Input 3

10 9 3
10 1
6 7
8 2
2 5
8 4
7 3
10 9
6 4
5 8
2 6
7 5
3 1

Sample Output 3

1 3 5 4 3 3 3 3 1 0

Solution in C# (Mono 4.6.2.0) (judge verdict: Runtime Error)

using System;
using System.Linq;
using System.Collections.Generic;
using System.Text;

public class AtCoder_157_D
{
    public static void Main()
    {
        //var exStdIn = new System.IO.StreamReader( "input.txt" );
        //System.Console.SetIn( exStdIn );

        int[] line1 = Console.ReadLine().Split(' ').Select(x => int.Parse(x)).ToArray();
        int n = line1[0];
        int m = line1[1];
        int k = line1[2];

        bool[,] ng = new bool[n, n];

        var union = new UnionFind(n);

        for (int i = 0; i < m; i++)
        {
            int[] line = Console.ReadLine().Split(' ').Select(x => int.Parse(x)).ToArray();
            int a = line[0] - 1;
            int b = line[1] - 1;
            ng[a, b] = true;
            ng[b, a] = true;
            union.Unite(a, b);
        }

        for (int i = 0; i < k; i++)
        {
            int[] line = Console.ReadLine().Split(' ').Select(x => int.Parse(x)).ToArray();
            int a = line[0] - 1;
            int b = line[1] - 1;
            ng[a, b] = true;
            ng[b, a] = true;
        }

        int[] ans = new int[n];
        bool[,] kouho = new bool[n, n];

        for (int i = 0; i < n; i++)
        {
            int count = 0;
            for (int j = 0; j < n; j++)
            {
                if (kouho[j, i])
                {
                    count++;
                    continue;
                }
                if (i != j &&
                    ng[i,j] == false &&
                    union.IsSameGroup(i, j))
                {
                    kouho[i, j] = true;
                    count++;
                }
            }
            ans[i] = count;
        }

        var sb = new StringBuilder();
        for (int i = 0; i < n; i++)
        {
            sb.Append(ans[i]);
            if (i < n - 1)
            {
                sb.Append(" ");
            }
        }
        Console.WriteLine(sb.ToString());
    }
}
/// <summary>
/// union find, positive int only
/// </summary>
public class UnionFind
{
    private int[] data;

    public UnionFind(int size)
    {
        data = new int[size];
        for (int i = 0; i < size; i++) data[i] = -1;
    }

    public bool Unite(int x, int y)
    {
        x = Root(x);
        y = Root(y);

        if (x != y)
        {
            if (data[y] < data[x])
            {
                var tmp = y;
                y = x;
                x = tmp;
            }
            data[x] += data[y];
            data[y] = x;
        }
        return x != y;
    }

    public bool IsSameGroup(int x, int y)
    {
        return Root(x) == Root(y);
    }

    private int Root(int x)
    {
        return data[x] < 0 ? x : data[x] = Root(data[x]);
    }
}