結果

問題 No.1907 DETERMINATION
ユーザー 👑 hos.lyrichos.lyric
提出日時 2022-04-15 21:22:23
言語 C++14
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 663 ms / 4,000 ms
コード長 6,533 bytes
コンパイル時間 1,604 ms
コンパイル使用メモリ 113,748 KB
実行使用メモリ 7,296 KB
最終ジャッジ日時 2024-12-24 23:20:13
合計ジャッジ時間 25,905 ms
ジャッジサーバーID
(参考情報)
judge2 / judge3
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 4
other AC * 63
権限があれば一括ダウンロードができます

ソースコード

diff #
プレゼンテーションモードにする

#include <cassert>
#include <cmath>
#include <cstdint>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <algorithm>
#include <bitset>
#include <complex>
#include <deque>
#include <functional>
#include <iostream>
#include <map>
#include <numeric>
#include <queue>
#include <set>
#include <sstream>
#include <string>
#include <unordered_map>
#include <unordered_set>
#include <utility>
#include <vector>
using namespace std;
using Int = long long;
template <class T1, class T2> ostream &operator<<(ostream &os, const pair<T1, T2> &a) { return os << "(" << a.first << ", " << a.second << ")"; };
template <class T> void pv(T a, T b) { for (T i = a; i != b; ++i) cerr << *i << " "; cerr << endl; }
template <class T> bool chmin(T &t, const T &f) { if (t > f) { t = f; return true; } return false; }
template <class T> bool chmax(T &t, const T &f) { if (t < f) { t = f; return true; } return false; }
////////////////////////////////////////////////////////////////////////////////
template <unsigned M_> struct ModInt {
static constexpr unsigned M = M_;
unsigned x;
constexpr ModInt() : x(0U) {}
constexpr ModInt(unsigned x_) : x(x_ % M) {}
constexpr ModInt(unsigned long long x_) : x(x_ % M) {}
constexpr ModInt(int x_) : x(((x_ %= static_cast<int>(M)) < 0) ? (x_ + static_cast<int>(M)) : x_) {}
constexpr ModInt(long long x_) : x(((x_ %= static_cast<long long>(M)) < 0) ? (x_ + static_cast<long long>(M)) : x_) {}
ModInt &operator+=(const ModInt &a) { x = ((x += a.x) >= M) ? (x - M) : x; return *this; }
ModInt &operator-=(const ModInt &a) { x = ((x -= a.x) >= M) ? (x + M) : x; return *this; }
ModInt &operator*=(const ModInt &a) { x = (static_cast<unsigned long long>(x) * a.x) % M; return *this; }
ModInt &operator/=(const ModInt &a) { return (*this *= a.inv()); }
ModInt pow(long long e) const {
if (e < 0) return inv().pow(-e);
ModInt a = *this, b = 1U; for (; e; e >>= 1) { if (e & 1) b *= a; a *= a; } return b;
}
ModInt inv() const {
unsigned a = M, b = x; int y = 0, z = 1;
for (; b; ) { const unsigned q = a / b; const unsigned c = a - q * b; a = b; b = c; const int w = y - static_cast<int>(q) * z; y = z; z = w; }
assert(a == 1U); return ModInt(y);
}
ModInt operator+() const { return *this; }
ModInt operator-() const { ModInt a; a.x = x ? (M - x) : 0U; return a; }
ModInt operator+(const ModInt &a) const { return (ModInt(*this) += a); }
ModInt operator-(const ModInt &a) const { return (ModInt(*this) -= a); }
ModInt operator*(const ModInt &a) const { return (ModInt(*this) *= a); }
ModInt operator/(const ModInt &a) const { return (ModInt(*this) /= a); }
template <class T> friend ModInt operator+(T a, const ModInt &b) { return (ModInt(a) += b); }
template <class T> friend ModInt operator-(T a, const ModInt &b) { return (ModInt(a) -= b); }
template <class T> friend ModInt operator*(T a, const ModInt &b) { return (ModInt(a) *= b); }
template <class T> friend ModInt operator/(T a, const ModInt &b) { return (ModInt(a) /= b); }
explicit operator bool() const { return x; }
bool operator==(const ModInt &a) const { return (x == a.x); }
bool operator!=(const ModInt &a) const { return (x != a.x); }
friend std::ostream &operator<<(std::ostream &os, const ModInt &a) { return os << a.x; }
};
////////////////////////////////////////////////////////////////////////////////
constexpr unsigned MO = 998244353;
using Mint = ModInt<MO>;
// det(a + x I)
// O(n^3)
// Call by value: Modifies a (Watch out when using C-style array!)
template <class T> vector<T> charPoly(vector<vector<T>> a) {
const int n = a.size();
// upper Hessenberg
for (int j = 0; j < n - 2; ++j) {
for (int i = j + 1; i < n; ++i) {
if (a[i][j]) {
swap(a[j + 1], a[i]);
for (int ii = 0; ii < n; ++ii) swap(a[ii][j + 1], a[ii][i]);
break;
}
}
if (a[j + 1][j]) {
const T s = 1 / a[j + 1][j];
for (int i = j + 2; i < n; ++i) {
const T t = s * a[i][j];
for (int jj = j; jj < n; ++jj) a[i][jj] -= t * a[j + 1][jj];
for (int ii = 0; ii < n; ++ii) a[ii][j + 1] += t * a[ii][i];
}
}
}
// fss[i] := det(a[0..i][0..i] + x I_i)
vector<vector<T>> fss(n + 1);
fss[0] = {1};
for (int i = 0; i < n; ++i) {
fss[i + 1].assign(i + 2, 0);
for (int k = 0; k <= i; ++k) fss[i + 1][k + 1] = fss[i][k];
for (int k = 0; k <= i; ++k) fss[i + 1][k] += a[i][i] * fss[i][k];
T prod = 1;
for (int j = i - 1; j >= 0; --j) {
prod *= -a[j + 1][j];
const T t = prod * a[j][i];
for (int k = 0; k <= j; ++k) fss[i + 1][k] += t * fss[j][k];
}
}
return fss[n];
}
// det(a + x b)
// O(n^3)
// Call by value: Modifies a, b (Watch out when using C-style array!)
template <class T> vector<T> detPoly(vector<vector<T>> a, vector<vector<T>> b) {
const int n = a.size();
T prod = 1;
int off = 0;
for (int h = 0; h < n; ++h) {
for (; ; ) {
if (b[h][h]) break;
for (int j = h + 1; j < n; ++j) {
if (b[h][j]) {
prod *= -1;
for (int i = 0; i < n; ++i) {
swap(a[i][h], a[i][j]);
swap(b[i][h], b[i][j]);
}
break;
}
}
if (b[h][h]) break;
if (++off > n) return vector<T>(n + 1, 0);
for (int j = 0; j < n; ++j) {
b[h][j] = a[h][j];
a[h][j] = 0;
}
for (int i = 0; i < h; ++i) {
const T t = b[h][i];
for (int j = 0; j < n; ++j) {
a[h][j] -= t * a[i][j];
b[h][j] -= t * b[i][j];
}
}
}
prod *= b[h][h];
const T s = 1 / b[h][h];
for (int j = 0; j < n; ++j) {
a[h][j] *= s;
b[h][j] *= s;
}
for (int i = 0; i < n; ++i) if (h != i) {
const T t = b[i][h];
for (int j = 0; j < n; ++j) {
a[i][j] -= t * a[h][j];
b[i][j] -= t * b[h][j];
}
}
}
const vector<T> fs = charPoly(a);
vector<T> gs(n + 1, 0);
for (int i = 0; off + i <= n; ++i) gs[i] = prod * fs[off + i];
return gs;
}
int N;
vector<vector<Mint>> A, B;
int main() {
for (; ~scanf("%d", &N); ) {
A.assign(N, vector<Mint>(N)); for (int i = 0; i < N; ++i) for (int j = 0; j < N; ++j) scanf("%u", &A[i][j].x);
B.assign(N, vector<Mint>(N)); for (int i = 0; i < N; ++i) for (int j = 0; j < N; ++j) scanf("%u", &B[i][j].x);
const auto ans = detPoly(A, B);
for (int i = 0; i <= N; ++i) {
printf("%u\n", ans[i].x);
}
#ifdef LOCAL
cerr<<"========"<<endl;
#endif
}
return 0;
}
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