結果
| 問題 | No.2832 Nana's Fickle Adventure |
| コンテスト | |
| ユーザー |
👑 |
| 提出日時 | 2024-08-03 01:43:51 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 117 ms / 3,000 ms |
| コード長 | 4,790 bytes |
| コンパイル時間 | 4,126 ms |
| コンパイル使用メモリ | 259,368 KB |
| 最終ジャッジ日時 | 2025-02-23 20:42:48 |
|
ジャッジサーバーID (参考情報) |
judge3 / judge5 |
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| ファイルパターン | 結果 |
|---|---|
| other | AC * 48 |
ソースコード
#include<bits/stdc++.h>
#include<atcoder/all>
#define rep(i,n) for(int i=0;i<n;i++)
using namespace std;
using namespace atcoder;
typedef long long ll;
typedef vector<int> vi;
typedef vector<long long> vl;
typedef vector<vector<int>> vvi;
typedef vector<vector<long long>> vvl;
typedef long double ld;
typedef pair<int, int> P;
ostream& operator<<(ostream& os, const modint& a) {os << a.val(); return os;}
template <int m> ostream& operator<<(ostream& os, const static_modint<m>& a) {os << a.val(); return os;}
template <int m> ostream& operator<<(ostream& os, const dynamic_modint<m>& a) {os << a.val(); return os;}
template<typename T> istream& operator>>(istream& is, vector<T>& v){int n = v.size(); assert(n > 0); rep(i, n) is >> v[i]; return is;}
template<typename U, typename T> ostream& operator<<(ostream& os, const pair<U, T>& p){os << p.first << ' ' << p.second; return os;}
template<typename T> ostream& operator<<(ostream& os, const vector<T>& v){int n = v.size(); rep(i, n) os << v[i] << (i == n - 1 ? "\n" : " "); return os;}
template<typename T> ostream& operator<<(ostream& os, const vector<vector<T>>& v){int n = v.size(); rep(i, n) os << v[i] << (i == n - 1 ? "\n" : ""); return os;}
template<typename T> ostream& operator<<(ostream& os, const set<T>& se){for(T x : se) os << x << " "; os << "\n"; return os;}
template<typename T> ostream& operator<<(ostream& os, const unordered_set<T>& se){for(T x : se) os << x << " "; os << "\n"; return os;}
template<typename S, auto op, auto e> ostream& operator<<(ostream& os, const atcoder::segtree<S, op, e>& seg){int n = seg.max_right(0, [](S){return true;}); rep(i, n) os << seg.get(i) << (i == n - 1 ? "\n" : " "); return os;}
template<typename S, auto op, auto e, typename F, auto mapping, auto composition, auto id> ostream& operator<<(ostream& os, const atcoder::lazy_segtree<S, op, e, F, mapping, composition, id>& seg){int n = seg.max_right(0, [](S){return true;}); rep(i, n) os << seg.get(i) << (i == n - 1 ? "\n" : " "); return os;}
template<typename T> void chmin(T& a, T b){a = min(a, b);}
template<typename T> void chmax(T& a, T b){a = max(a, b);}
using mint = modint998244353;
// https://youtu.be/ylWYSurx10A?t=2352
template<typename T>
struct Matrix : vector<vector<T>> {
int h, w;
Matrix(int h, int w, T val=0): vector<vector<T>>(h, vector<T>(w, val)), h(h), w(w) {}
Matrix(initializer_list<initializer_list<T>> a) : vector<vector<T>>(a.begin(), a.end()){
assert(int(this->size()) >= 1);
assert(int((*this)[0].size()) >= 1);
h = this->size();
w = (*this)[0].size();
rep(i, h) assert(int((*this)[i].size()) == w);
}
Matrix& unit() {
assert(h == w);
rep(i,h) (*this)[i][i] = 1;
return *this;
}
Matrix operator*=(const Matrix& M){
assert(w == M.h);
Matrix r(h, M.w);
rep(i,h) rep(k,w) rep(j, M.w){
r[i][j] += (*this)[i][k] * M[k][j];
}
swap(*this, r);
return *this;
}
Matrix operator*(const Matrix& M) const {return (Matrix(*this) *= M);}
Matrix operator*=(const T& a) {
for(int i = 0; i < h; i++) for(int j = 0; j < w; j++) (*this)[i][j] *= a;
return *this;
}
Matrix operator*(const T& a) const {return (Matrix(*this) *= a);}
Matrix operator+=(const Matrix& M){
assert(h == M.h and w == M.w);
for(int i = 0; i < h; i++) for(int j = 0; j < w; j++) (*this)[i][j] += M[i][j];
return *this;
}
Matrix operator+(const Matrix& M) const {return (Matrix(*this) += M);}
Matrix pow(long long t) const {
assert(h == w);
if (!t) return Matrix(h,h).unit();
if (t == 1) return *this;
Matrix r = pow(t>>1);r = r*r;
if (t&1) r = r*(*this);
return r;
}
};
int main(){
int n, m, t;
cin >> n >> m >> t;
vector<vector<int>> path(n, vector<int>(n));
vector<int> path_tot(n);
auto f = [&](int u, int v){
return u * n + v;
};
rep(i, m){
int u, v;
cin >> u >> v;
u--; v--;
if(u != v){
path[u][v]++;
path[v][u]++;
path_tot[u]++;
path_tot[v]++;
}else{
path[u][u]++;
path_tot[u]++;
}
}
int k = (n + 1) * n;
Matrix<mint> mat(k, k);
rep(prev, n + 1) rep(from, n){
if(path_tot[from] == 0){
mat[f(n, from)][f(prev, from)] = 1;
continue;
}
if(path_tot[from] == 1 and prev != n){
mat[f(n, from)][f(prev, from)] = 1;
continue;
}
rep(to, n){
mint prob = 1;
if(path[from][to] == 0) continue;
if(prev == n){
prob *= path[from][to];
prob /= path_tot[from];
}else if(prev != n and prev == to){
prob *= path[from][to] - 1;
prob /= path_tot[from] - 1;
}else if(prev != n and prev != to){
prob *= path[from][to];
prob /= path_tot[from] - 1;
}
mat[f(from, to)][f(prev, from)] += prob;
}
}
auto mat_pow = mat.pow(t);
vector<mint> ans(n);
rep(from, n + 1) rep(to, n){
ans[to] += mat_pow[f(from, to)][f(n, 0)];
}
rep(to, n){
cout << ans[to] << "\n";
}
return 0;
}