結果
問題 | No.2487 Multiple of M |
ユーザー |
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提出日時 | 2023-09-29 22:33:21 |
言語 | C++23 (gcc 13.3.0 + boost 1.87.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 3,037 bytes |
コンパイル時間 | 3,535 ms |
コンパイル使用メモリ | 272,736 KB |
実行使用メモリ | 5,376 KB |
最終ジャッジ日時 | 2024-07-23 06:54:26 |
合計ジャッジ時間 | 5,079 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge3 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 39 WA * 14 |
ソースコード
#include<bits/stdc++.h>namespace {#pragma GCC diagnostic ignored "-Wunused-function"#include<atcoder/all>#pragma GCC diagnostic warning "-Wunused-function"using namespace std;using namespace atcoder;#define rep(i,n) for(int i = 0; i < (int)(n); i++)#define rrep(i,n) for(int i = (int)(n) - 1; i >= 0; i--)#define all(x) begin(x), end(x)#define rall(x) rbegin(x), rend(x)template<class T> bool chmax(T& a, const T& b) { if (a < b) { a = b; return true; } else return false; }template<class T> bool chmin(T& a, const T& b) { if (b < a) { a = b; return true; } else return false; }using ll = long long;using P = pair<int,int>;using VI = vector<int>;using VVI = vector<VI>;using VL = vector<ll>;using VVL = vector<VL>;using mint = modint998244353;template<class T, T (*add)(T, T), T (*zero)(), T (*mul)(T, T), T (*one)(), int N>struct Mat : array<array<T, N>, N> {using M = Mat<T, add, zero, mul, one, N>;void make_identity() {for (int i = 0; i < N; i++) {for (int j = 0; j < N; j++) {(*this)[i][j] = zero();}}for (int i = 0; i < N; i++) {(*this)[i][i] = one();}}M& operator+=(const M& rhs) {for (int i = 0; i < N; i++) {for (int j = 0; j < N; j++) {(*this)[i][j] = add((*this)[i][j], rhs[i][j]);}}return *this;}M& operator*=(const M& rhs) {static M temp;for (int i = 0; i < N; i++) {for (int j = 0; j < N; j++) {temp[i][j] = zero();}}for (int i = 0; i < N; i++) {for (int j = 0; j < N; j++) {for (int k = 0; k < N; k++) {temp[i][k] = add(temp[i][k], mul((*this)[i][j], rhs[j][k]));}}}*this = temp;return *this;}template <class I>void inplace_pow(I k) {assert(k >= 0);static M temp;temp = *this;make_identity();while (k) {if (k & 1) *this *= temp;k >>= 1;if (k) temp *= temp;}}friend ostream& operator<<(ostream& os, const M& A) {for (int i = 0; i < N; i++) {for (int j = 0; j < N; j++) {os << A[i][j] << " \n"[j + 1 == N];}}return os;}};// mintmint add(mint x, mint y) { return x + y; }mint zero() { return mint(); }mint mul(mint x, mint y) { return x * y; }mint one() { return mint::raw(1); }using M = Mat<mint, add, zero, mul, one, 2>;array<mint, 2> solve(int n, int m, int mod, int k) {if (n == 0) return {1, 0};int g = gcd(mod, k);if (g == 1) {M a;int x = m / mod;a[0] = {x - 1, m - 1 - (x - 1)};a[1] = {x, m - 1 - x};a.inplace_pow(n);return {a[0][0], a[0][1]};}int mod2 = mod / g, k2 = k / g;auto a = solve(n - 1, m, mod2, k2);array<mint, 2> na;int x = m / mod;na[0] = (x - 1) * a[0] + x * a[1];na[1] = (m - 1 - (x - 1)) * a[0] + (m - 1 - x) * a[1];return na;}} int main() {ios::sync_with_stdio(false);cin.tie(0);int n, m, k;cin >> n >> m >> k;mint ans = solve(n, m, m, k)[0];cout << ans.val() << '\n';}