Problem:
Score : 100 points

Problem Statement

There is a tree with N vertices, numbered 1, 2, \ldots, N.
For each i (1 \leq i \leq N - 1), the i-th edge connects Vertex x_i and y_i.

Taro has decided to paint each vertex in white or black, so that any black vertex can be reached from any other black vertex by passing through only black vertices.

You are given a positive integer M.
For each v (1 \leq v \leq N), answer the following question:

Assuming that Vertex v has to be black, find the number of ways in which the vertices can be painted, modulo M.

Constraints

All values in input are integers.

1 \leq N \leq 10^5

2 \leq M \leq 10^9

1 \leq x_i, y_i \leq N

The given graph is a tree.

Input

Input is given from Standard Input in the following format:

N M
x_1 y_1
x_2 y_2
:
x_{N - 1} y_{N - 1}

Output

Print N lines.
The v-th (1 \leq v \leq N) line should contain the answer to the following question:

Assuming that Vertex v has to be black, find the number of ways in which the vertices can be painted, modulo M.

Sample Input 1

3 100
1 2
2 3

Sample Output 1

3
4
3

There are seven ways to paint the vertices, as shown in the figure below.
Among them, there are three ways such that Vertex 1 is black, four ways such that Vertex 2 is black and three ways such that Vertex 3 is black.

Sample Input 2

4 100
1 2
1 3
1 4

Sample Output 2

8
5
5
5

Sample Input 3

1 100

Sample Output 3

1

Sample Input 4

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

Sample Output 4

0
0
1
1
1
0
1
0
1
1

Be sure to print the answers modulo M.

Solution in C++14 (GCC 5.4.1) (judge verdict: Accepted)

#pragma region template 2.4
#include <bits/stdc++.h>
using namespace std;
template <typename T>
using pq_asc = priority_queue<T, vector<T>, greater<T>>;
typedef long long ll;
typedef vector<ll> vi;
typedef vector<vi> vvi;
typedef pair<ll, ll> ii;
typedef vector<ii> vii;
typedef vector<string> vs;
#define REP(i, n) for (ll i = 0; i < (n); ++i)
#define REP1(i, n) for (ll i = 1; i <= (n); ++i)
#define FOR(i, a) for (auto &i : a)
#define CH(f, x, y) x = f(x, y)
#define IN(T, x) \
    T x;         \
    cin >> x;
#define AIN(T, a, n) \
    vector<T> a(n);  \
    FOR(i, a)        \
    cin >> i;
#define A2IN(T1, a, T2, b, n) \
    vector<T1> a(n);          \
    vector<T2> b(n);          \
    REP(i, n)                 \
    cin >> a[i] >> b[i];
#define OUT(x) cout << (x) << endl;
#define FOUT(x) cout << fixed << setprecision(15) << (x) << endl;
#define ALL(a) (a).begin(), (a).end()
#define SORT(a) sort(ALL(a))
#define RSORT(a) \
    SORT(a);     \
    reverse(ALL(a))
#define DUMP(x) cout << #x << " = " << (x) << endl;
#define DUMPA(a)          \
    cout << #a << " = {"; \
    JOUT(ALL(a), ", ", cout) << "}" << endl;

template <typename T>
ostream &JOUT(T s, T e, string sep = " ", ostream &os = cout)
{
    if (s != e)
    {
        os << *s;
        ++s;
    }
    while (s != e)
    {
        os << sep << *s;
        ++s;
    }
    return os;
}

ostream &YES(bool cond, string yes = "Yes", string no = "No", ostream &os = cout)
{
    if (cond)
    {
        os << yes << endl;
    }
    else
    {
        os << no << endl;
    }
    return os;
}

template <typename T1, typename T2>
ostream &operator<<(ostream &os, const pair<T1, T2> &p)
{
    os << '(' << p.first << ", " << p.second << ')';
    return os;
}

template <typename T>
ostream &operator<<(ostream &os, const vector<T> &v)
{
    os << '[';
    JOUT(ALL(v), ", ", os) << ']';
    return os;
}

const ll INF = 1e18;
const ll MOD = 1e9 + 7;
#pragma endregion template
#pragma region graph 0.2
template <typename W>
struct graph
{
    using E = pair<ll, W>;
    ll n;
    ll m;
    bool weighted;
    bool directed;
    vector<vector<E>> e;

    graph() {}

    graph(ll n, ll m = 0, bool weighted = false, bool directed = false) : n(n), m(m), directed(directed), weighted(weighted)
    {
        e.assign(n + 1, vector<E>());
    }

    void add(ll i, ll j, W w = 1)
    {
        e[i].push_back(E(j, w));
        if (not directed)
        {
            e[j].push_back(E(i, w));
        }
        ++m;
    }

    vector<E> &operator[](int i)

    {
        return e[i];
    }
};

template <typename W>
istream &operator>>(istream &is, graph<W> &G)
{
    REP(i, G.m)
    {
        ll from, to, w;
        is >> from >> to;
        if (G.weighted)
        {
            is >> w;
            G.add(from, to, w);
        }
        else
        {
            G.add(from, to);
        }
        --G.m;
    }
    return is;
}

#pragma endregion graph
#pragma region tree 0.1
template <typename W>
struct tree
{
    using E = pair<ll, W>;
    ll n;
    ll r;
    vector<E> p;
    vector<vector<E>> c;
    vi d;

    tree() {}

    tree(graph<W> &G, ll r = 1) : n(G.n), r(r)
    {
        p.assign(G.n + 1, E(-2, 0));
        c.assign(G.n + 1, vector<E>());
        d.assign(G.n + 1, 0);
        queue<ll> q;
        p[r] = E(-1, 0);
        q.push(r);
        while (!q.empty())
        {
            ll i = q.front();
            q.pop();
            for (auto e : G[i])
            {
                ll j = e.first;
                ll w = e.second;
                if (p[j].first == -2)
                {
                    p[j] = E(i, w);
                    c[i].push_back(E(j, w));
                    d[j] = d[i] + 1;
                    q.push(j);
                }
            }
        }
    }

    E par(ll i)
    {
        return p[i];
    }

    ll depth(ll i)
    {
        return d[i];
    }

    vector<E> &operator[](int i)
    {
        return c[i];
    }
};

#pragma endregion tree

ll M;
tree<ll> T;
vvi acc_l, acc_r;

ll f(ll i)
{
    ll d = T[i].size();
    acc_l[i] = vi(d + 1, 1);
    acc_r[i] = vi(d + 1, 1);
    REP(k, d)
    {
        ll x = f(T[i][k].first) + 1;
        acc_l[i][k + 1] = (acc_l[i][k] * x) % M;
        acc_r[i][k] = x;
    }
    for (ll k = d - 1; k >= 0; --k)
    {
        acc_r[i][k] *= acc_r[i][k + 1];
        acc_r[i][k] %= M;
    }
    return acc_l[i][d];
}

int main()
{
    IN(ll, N);
    cin >> M;
    graph<ll> G(N, N - 1);
    cin >> G;
    T = tree<ll>(G);
    acc_l = vvi(N + 1);
    acc_r = vvi(N + 1);
    f(1);
    vi ans(N);
    queue<ii> q;
    q.push({1, 0});
    while (not q.empty())
    {
        ii p = q.front();
        q.pop();
        ll i = p.first;
        ll w = p.second;
        ll d = T[i].size();
        ans[i - 1] = (acc_l[i][d] * (w + 1)) % M;
        REP(k, d)
        {
            ii e = T[i][k];
            q.push({e.first, (((acc_l[i][k] * acc_r[i][k + 1]) % M) * (w + 1)) % M});
        }
    }
    FOR(a, ans)
    {
        OUT(a);
    }
}