結果
問題 | No.1750 ラムドスウイルスの感染拡大-hard |
ユーザー | nawawan |
提出日時 | 2021-11-19 21:51:37 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 311 ms / 2,000 ms |
コード長 | 5,855 bytes |
コンパイル時間 | 2,497 ms |
コンパイル使用メモリ | 213,800 KB |
実行使用メモリ | 13,348 KB |
最終ジャッジ日時 | 2024-06-10 08:39:34 |
合計ジャッジ時間 | 6,803 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 4 ms
13,256 KB |
testcase_01 | AC | 4 ms
13,132 KB |
testcase_02 | AC | 4 ms
13,092 KB |
testcase_03 | AC | 4 ms
13,132 KB |
testcase_04 | AC | 10 ms
13,132 KB |
testcase_05 | AC | 5 ms
13,136 KB |
testcase_06 | AC | 4 ms
13,132 KB |
testcase_07 | AC | 4 ms
13,128 KB |
testcase_08 | AC | 55 ms
13,256 KB |
testcase_09 | AC | 55 ms
13,260 KB |
testcase_10 | AC | 57 ms
13,256 KB |
testcase_11 | AC | 45 ms
13,256 KB |
testcase_12 | AC | 60 ms
13,260 KB |
testcase_13 | AC | 55 ms
13,260 KB |
testcase_14 | AC | 281 ms
13,256 KB |
testcase_15 | AC | 284 ms
13,132 KB |
testcase_16 | AC | 294 ms
13,204 KB |
testcase_17 | AC | 298 ms
13,348 KB |
testcase_18 | AC | 311 ms
13,260 KB |
testcase_19 | AC | 301 ms
13,152 KB |
testcase_20 | AC | 206 ms
13,232 KB |
testcase_21 | AC | 233 ms
13,264 KB |
testcase_22 | AC | 44 ms
13,132 KB |
testcase_23 | AC | 279 ms
13,236 KB |
testcase_24 | AC | 35 ms
13,004 KB |
testcase_25 | AC | 79 ms
13,136 KB |
testcase_26 | AC | 29 ms
13,128 KB |
testcase_27 | AC | 5 ms
13,132 KB |
testcase_28 | AC | 6 ms
13,000 KB |
testcase_29 | AC | 6 ms
13,084 KB |
testcase_30 | AC | 43 ms
13,136 KB |
testcase_31 | AC | 41 ms
13,004 KB |
testcase_32 | AC | 40 ms
13,156 KB |
testcase_33 | AC | 39 ms
13,084 KB |
ソースコード
#include <bits/stdc++.h> using namespace std; template<const int MOD> struct modint{ long long val; modint(): val(0) {} modint(long long x){ if(x < 0) val = x % MOD + MOD; else val = x % MOD; } modint(const modint &t){ val = t.val; } modint& operator =(const modint m){ val = m.val; return *this; } modint operator -(){ return modint(-val); } modint& operator-=(const modint &m){ val -= m.val; if(val < 0) val += MOD; return *this; } modint& operator+=(const modint &m){ val += m.val; if(val >= MOD) val -= MOD; return *this; } modint& operator*=(const modint &m){ val *= m.val; val %= MOD; return *this; } modint& operator/=(modint m){ *this *= m.inv(); return *this; } modint inv(){ long long x = 1, y = 0; long long a = val, b = MOD; while(b != 0){ long long t = a / b; a -= t * b; x -= t * y; swap(a, b); swap(x, y); } x %= MOD; if(x < 0) x += MOD; return modint(x); } modint pow(long long k){ long long res = 1; long long v = val; while(k > 0){ if(k & 1) res = res * v % MOD; v = v * v % MOD; k >>= 1; } return modint(res); } bool operator==(const modint &m){ return val == m.val; } modint operator+(const modint &m){ return modint(*this) += m; } modint operator-(const modint &m){ return modint(*this) -= m; } modint operator*(const modint &m){ return modint(*this) *= m; } modint operator/(const modint &m){ return modint(*this) /= m; } bool operator!=(const modint &m){ return modint(*this).val != m.val; } bool operator!=(const int &m){ return modint(*this).val != m; } }; const int MOD = 998244353; using mint = modint<MOD>; const int MAX = 410000; mint fac[MAX], finv[MAX], inv[MAX]; void COMinit(){ fac[0] = fac[1] = 1; finv[0] = finv[1] = 1; inv[1] = 1; for(int i = 2; i < MAX; i++){ fac[i] = fac[i - 1] * i; inv[i] = mint(MOD) - inv[MOD % i] * (MOD / i); finv[i] = finv[i - 1] * inv[i]; } } mint COM(int n, int k){ if (n < k) return 0; if (n < 0 || k < 0) return 0; return fac[n] * finv[k] * finv[n - k]; } template<typename T> struct mat{ vector<vector<T>> matrix;//行列 int N, M; mat(){} mat(int n, int m): N(n), M(m){ matrix.resize(n, vector<T>(m)); } mat(vector<vector<T>> m) : N(m.size()), M(m[0].size()), matrix(m){} vector<T> operate(vector<T> &vec){//ベクトルにかける assert(vec.size() == M); vector<T> res(N); for(int i = 0; i < N; i++){ for(int j = 0; j < M; j++) res[i] += (*this)[i][j] * vec[j]; } return res; } mat I(int N){ mat m(N, N); for(int i = 0; i < N; i++) m[i][i] = 1; return (m); } mat& pow(long long K){ assert(N == M);//正方行列である必要あり mat temp(I(N)); while(K > 0){ if(K & 1) temp *= *this; *this *= *this; K >>= 1; } matrix.swap(temp.matrix); return *this; } const vector<T> &operator[](int i) const{ return matrix.at(i); } vector<T>& operator[](int i){ return matrix.at(i); } mat& operator*=(const mat &mat2){ vector<vector<T>> res(N, vector<T>(M)); for(int i = 0; i < N; i++){ for(int j = 0; j < N; j++){ for(int k = 0; k < M; k++){ res[i][j] += (*this)[i][k] * mat2[k][j]; } } } matrix.swap(res); return *this; } mat& operator^=(const mat &mat2){ assert(N == mat2.N && M == mat2.M); for(int i = 0; i < N; i++){ for(int j = 0; j < M; j++) (*this)[i][j] ^= mat2[i][j]; } return *this; } mat& operator|=(const mat &mat2){ assert(N == mat2.N && M == mat2.M); for(int i = 0; i < N; i++){ for(int j = 0; j < M; j++) (*this)[i][j] |= mat2[i][j]; } return *this; } mat& operator&=(const mat &mat2){ assert(N == mat2.N && M == mat2.M); for(int i = 0; i < N; i++){ for(int j = 0; j < M; j++) (*this)[i][j] &= mat2[i][j]; } return *this; } mat& operator+=(const mat &mat2){ assert(N == mat2.N && M == mat2.M); for(int i = 0; i < N; i++){ for(int j = 0; j < M; j++) (*this)[i][j] += mat2[i][j]; } return *this; } mat& operator-=(const mat &mat2){ assert(N == mat2.N && M == mat2.M); for(int i = 0; i < N; i++){ for(int j = 0; j < M; j++) (*this)[i][j] -= mat2[i][j]; } return *this; } mat operator+(const mat &mat1){ return mat(*this) += mat1; } mat operator-(const mat &mat1){ return mat(*this) -= mat1; } mat operator*(const mat &mat2){ return mat(*this) *= mat2; } mat operator&(const mat &mat1){ return mat(*this) &= mat1; } mat operator|(const mat &mat1){ return mat(*this) |= mat1; } mat operator^(const mat &mat1){ return mat(*this) ^= mat1; } }; int main(){ int N, M; cin >> N >> M; long long T; cin >> T; mat<mint> V(N, N); for(int i = 0; i < M; i++){ int a, b; cin >> a >> b; V[a][b] = 1; V[b][a] = 1; } vector<mint> ans(N); ans[0] = 1; V.pow(T); ans = V.operate(ans); cout << ans[0].val << endl; }