結果

問題 No.1750 ラムドスウイルスの感染拡大-hard
ユーザー iiljj
提出日時 2021-11-19 22:35:16
言語 C++17(gcc12)
(gcc 12.3.0 + boost 1.87.0)
結果
CE  
(最新)
AC  
(最初)
実行時間 -
コード長 14,069 bytes
コンパイル時間 3,335 ms
コンパイル使用メモリ 168,692 KB
最終ジャッジ日時 2025-01-25 20:36:13
ジャッジサーバーID
(参考情報)
judge3 / judge2
このコードへのチャレンジ
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コンパイルエラー時のメッセージ・ソースコードは、提出者また管理者しか表示できないようにしております。(リジャッジ後のコンパイルエラーは公開されます)
ただし、clay言語の場合は開発者のデバッグのため、公開されます。

コンパイルメッセージ
main.cpp:345:14: error: expected unqualified-id before 'const'
  345 |     Mat<Num>(const size_t h, size_t w) : vc<vc<Num>>(h, vc<Num>(w, 0)), h(h), w(w) {}
      |              ^~~~~
main.cpp:345:14: error: expected ')' before 'const'
  345 |     Mat<Num>(const size_t h, size_t w) : vc<vc<Num>>(h, vc<Num>(w, 0)), h(h), w(w) {}
      |             ~^~~~~
      |              )
main.cpp:347:45: error: invalid declarator before 'init'
  347 |     Mat<Num>(std::initializer_list<vc<Num>> init) : vc<vc<Num>>() {
      |                                             ^~~~
main.cpp:347:44: error: expected ')' before 'init'
  347 |     Mat<Num>(std::initializer_list<vc<Num>> init) : vc<vc<Num>>() {
      |             ~                              ^~~~~
      |                                            )
main.cpp: In function 'void solve()':
main.cpp:426:19: error: could not convert 'n' from 'll' {aka 'long long int'} to 'std::vector<std::vector<mint, std::allocator<mint> >, std::allocator<std::vector<mint, std::allocator<mint> > > >'
  426 |     Mat<mint> mat(n, n);
      |                   ^
      |                   |
      |                   ll {aka long long int}
main.cpp:432:18: error: could not convert 'n' from 'll' {aka 'long long int'} to 'std::vector<std::vector<mint, std::allocator<mint> >, std::allocator<std::vector<mint, std::allocator<mint> > > >'
  432 |     Mat<mint> dp(n, 1);
      |                  ^
      |                  |
      |                  ll {aka long long int}
main.cpp: In instantiation of 'Mat<Num> Mat<Num>::pow(ll) const [with Num = mint; ll = long long int]':
main.cpp:436:17:   required from here
main.cpp:396:28: error: could not convert '((const Mat<mint>*)this)->Mat<mint>::h' from 'const size_t' {aka 'const long unsigned int'} to 'std::vector<std::vector<mint, std::allocator<mint> >, std::allocator<std::vector<mint, std::allocator<mint> > > >'
  396 |         Mat<Num> ret(this->h, this->w);
      |                      ~~~~~~^
      | 

ソースコード

diff #
プレゼンテーションモードにする

/* #region Head */
// #include <bits/stdc++.h>
#include <algorithm>
#include <array>
#include <bitset>
#include <cassert> // assert.h
#include <cmath> // math.h
#include <cstring>
#include <ctime>
#include <deque>
#include <fstream>
#include <functional>
#include <iomanip>
#include <iostream>
#include <list>
#include <map>
#include <memory>
#include <numeric>
#include <queue>
#include <random>
#include <set>
#include <sstream>
#include <stack>
#include <string>
#include <unordered_map>
#include <unordered_set>
#include <vector>
using namespace std;
using ll = long long;
using ull = unsigned long long;
using ld = long double;
using pll = pair<ll, ll>;
template <class T> using vc = vector<T>;
template <class T> using vvc = vc<vc<T>>;
using vll = vc<ll>;
using vvll = vvc<ll>;
using vld = vc<ld>;
using vvld = vvc<ld>;
using vs = vc<string>;
using vvs = vvc<string>;
template <class T, class U> using um = unordered_map<T, U>;
template <class T> using pq = priority_queue<T>;
template <class T> using pqa = priority_queue<T, vc<T>, greater<T>>;
template <class T> using us = unordered_set<T>;
#define TREP(T, i, m, n) for (T i = (m), i##_len = (T)(n); i < i##_len; ++(i))
#define TREPM(T, i, m, n) for (T i = (m), i##_max = (T)(n); i <= i##_max; ++(i))
#define TREPR(T, i, m, n) for (T i = (m), i##_min = (T)(n); i >= i##_min; --(i))
#define TREPD(T, i, m, n, d) for (T i = (m), i##_len = (T)(n); i < i##_len; i += (d))
#define TREPMD(T, i, m, n, d) for (T i = (m), i##_max = (T)(n); i <= i##_max; i += (d))
#define REP(i, m, n) for (ll i = (m), i##_len = (ll)(n); i < i##_len; ++(i))
#define REPM(i, m, n) for (ll i = (m), i##_max = (ll)(n); i <= i##_max; ++(i))
#define REPR(i, m, n) for (ll i = (m), i##_min = (ll)(n); i >= i##_min; --(i))
#define REPD(i, m, n, d) for (ll i = (m), i##_len = (ll)(n); i < i##_len; i += (d))
#define REPMD(i, m, n, d) for (ll i = (m), i##_max = (ll)(n); i <= i##_max; i += (d))
#define REPI(itr, ds) for (auto itr = ds.begin(); itr != ds.end(); itr++)
#define REPIR(itr, ds) for (auto itr = ds.rbegin(); itr != ds.rend(); itr++)
#define ALL(x) begin(x), end(x)
#define SIZE(x) ((ll)(x).size())
#define ISIZE(x) ((int)(x).size())
#define PERM(c) \
sort(ALL(c)); \
for (bool c##p = 1; c##p; c##p = next_permutation(ALL(c)))
#define UNIQ(v) v.erase(unique(ALL(v)), v.end());
#define CEIL(a, b) (((a) + (b)-1) / (b))
#define endl '\n'
constexpr ll INF = 1'010'000'000'000'000'017LL;
constexpr int IINF = 1'000'000'007LL;
// constexpr ll MOD = 1'000'000'007LL; // 1e9 + 7
constexpr ll MOD = 998244353;
constexpr ld EPS = 1e-12;
constexpr ld PI = 3.14159265358979323846;
template <typename T> istream &operator>>(istream &is, vc<T> &vec) { // vector
for (T &x : vec) is >> x;
return is;
}
template <typename T> ostream &operator<<(ostream &os, const vc<T> &vec) { // vector (for dump)
os << "{";
REP(i, 0, SIZE(vec)) os << vec[i] << (i == i_len - 1 ? "" : ", ");
os << "}";
return os;
}
template <typename T> ostream &operator>>(ostream &os, const vc<T> &vec) { // vector (inline)
REP(i, 0, SIZE(vec)) os << vec[i] << (i == i_len - 1 ? "\n" : " ");
return os;
}
template <typename T, size_t _Nm> istream &operator>>(istream &is, array<T, _Nm> &arr) { // array
REP(i, 0, SIZE(arr)) is >> arr[i];
return is;
}
template <typename T, size_t _Nm> ostream &operator<<(ostream &os, const array<T, _Nm> &arr) { // array (for dump)
os << "{";
REP(i, 0, SIZE(arr)) os << arr[i] << (i == i_len - 1 ? "" : ", ");
os << "}";
return os;
}
template <typename T, typename U> istream &operator>>(istream &is, pair<T, U> &pair_var) { // pair
is >> pair_var.first >> pair_var.second;
return is;
}
template <typename T, typename U> ostream &operator<<(ostream &os, const pair<T, U> &pair_var) { // pair
os << "(" << pair_var.first << ", " << pair_var.second << ")";
return os;
}
// map, um, set, us
template <class T> ostream &out_iter(ostream &os, const T &map_var) {
os << "{";
REPI(itr, map_var) {
os << *itr;
auto itrcp = itr;
if (++itrcp != map_var.end()) os << ", ";
}
return os << "}";
}
template <typename T, typename U> ostream &operator<<(ostream &os, const map<T, U> &map_var) {
return out_iter(os, map_var);
}
template <typename T, typename U> ostream &operator<<(ostream &os, const um<T, U> &map_var) {
os << "{";
REPI(itr, map_var) {
auto [key, value] = *itr;
os << "(" << key << ", " << value << ")";
auto itrcp = itr;
if (++itrcp != map_var.end()) os << ", ";
}
os << "}";
return os;
}
template <typename T> ostream &operator<<(ostream &os, const set<T> &set_var) { return out_iter(os, set_var); }
template <typename T> ostream &operator<<(ostream &os, const us<T> &set_var) { return out_iter(os, set_var); }
template <typename T> ostream &operator<<(ostream &os, const pq<T> &pq_var) {
pq<T> pq_cp(pq_var);
os << "{";
if (!pq_cp.empty()) {
os << pq_cp.top(), pq_cp.pop();
while (!pq_cp.empty()) os << ", " << pq_cp.top(), pq_cp.pop();
}
return os << "}";
}
// tuple
template <size_t N = 0, bool end_line = false, typename... Args> ostream &operator<<(ostream &os, tuple<Args...> &a) {
if constexpr (N < std::tuple_size_v<tuple<Args...>>) {
os << get<N>(a);
if constexpr (N + 1 < std::tuple_size_v<tuple<Args...>>) {
os << ' ';
} else if constexpr (end_line) {
os << '\n';
}
return operator<<<N + 1, end_line>(os, a);
}
return os;
}
template <typename... Args> void print_tuple(tuple<Args...> &a) { operator<<<0, true>(cout, a); }
void pprint() { cout << endl; }
template <class Head, class... Tail> void pprint(Head &&head, Tail &&...tail) {
cout << head;
if (sizeof...(Tail) > 0) cout << ' ';
pprint(move(tail)...);
}
// dump
#define DUMPOUT cerr
void dump_func() { DUMPOUT << endl; }
template <class Head, class... Tail> void dump_func(Head &&head, Tail &&...tail) {
DUMPOUT << head;
if (sizeof...(Tail) > 0) DUMPOUT << ", ";
dump_func(move(tail)...);
}
// chmax ()
template <typename T, typename U, typename Comp = less<>> bool chmax(T &xmax, const U &x, Comp comp = {}) {
if (comp(xmax, x)) {
xmax = x;
return true;
}
return false;
}
// chmin ()
template <typename T, typename U, typename Comp = less<>> bool chmin(T &xmin, const U &x, Comp comp = {}) {
if (comp(x, xmin)) {
xmin = x;
return true;
}
return false;
}
//
#ifndef ONLINE_JUDGE
#define DEBUG_
#endif
#ifdef DEBUG_
#define DEB
#define dump(...) \
DUMPOUT << " " << string(#__VA_ARGS__) << ": " \
<< "[" << to_string(__LINE__) << ":" << __FUNCTION__ << "]" << endl \
<< " ", \
dump_func(__VA_ARGS__)
#else
#define DEB if (false)
#define dump(...)
#endif
#define VAR(type, ...) \
type __VA_ARGS__; \
cin >> __VA_ARGS__;
template <typename T> istream &operator,(istream &is, T &rhs) { return is >> rhs; }
template <typename T> ostream &operator,(ostream &os, const T &rhs) { return os << ' ' << rhs; }
struct AtCoderInitialize {
static constexpr int IOS_PREC = 15;
static constexpr bool AUTOFLUSH = false;
AtCoderInitialize() {
ios_base::sync_with_stdio(false), cin.tie(nullptr), cout.tie(nullptr);
cout << fixed << setprecision(IOS_PREC);
if (AUTOFLUSH) cout << unitbuf;
}
} ATCODER_INITIALIZE;
void Yn(bool p) { cout << (p ? "Yes" : "No") << endl; }
void YN(bool p) { cout << (p ? "YES" : "NO") << endl; }
/* #endregion */
// #include <atcoder/all>
// using namespace atcoder;
/* #region mint */
// MOD
struct mint {
ll x;
mint(ll x = 0) : x((x % MOD + MOD) % MOD) {}
mint &operator+=(const mint &a) {
if ((x += a.x) >= MOD) x -= MOD;
return *this;
}
mint &operator-=(const mint &a) {
if ((x += MOD - a.x) >= MOD) x -= MOD;
return *this;
}
mint &operator*=(const mint &a) {
(x *= a.x) %= MOD;
return *this;
}
mint operator+(const mint &a) const {
mint res(*this);
return res += a;
}
mint operator-(const mint &a) const {
mint res(*this);
return res -= a;
}
mint operator*(const mint &a) const {
mint res(*this);
return res *= a;
}
// O(log(t))
mint pow_rec(ll t) const {
if (!t) return 1;
mint a = pow(t >> 1); // ⌊t/2⌋
a *= a; // ⌊t/2⌋*2
if (t & 1) // ⌊t/2⌋*2 == t-1
a *= *this; // ⌊t/2⌋*2+1 => t
return a;
}
mint pow(ll t) const {
mint a(*this);
mint res = 1;
while (t) {
if (t & 1) res *= a;
t >>= 1, a *= a;
}
return res;
}
// for prime mod
mint inv_prime() const {
return pow(MOD - 2); // x^(-1) ≡ x^(p-2)
}
mint inv() const {
ll a = this->x, b = MOD, u = 1, v = 0, t;
mint res;
while (b) {
t = a / b;
a -= t * b;
swap(a, b);
u -= t * v;
swap(u, v);
}
if (u < 0) u += MOD;
res = u;
return res;
}
mint &operator/=(const mint &a) { return (*this) *= a.inv(); }
mint operator/(const mint &a) const {
mint res(*this);
return res /= a;
}
bool operator==(const mint &a) const { return this->x == a.x; }
bool operator==(const ll a) const { return this->x == a; }
bool operator!=(const mint &a) const { return this->x != a.x; }
bool operator!=(const ll a) const { return this->x != a; }
// mint
friend istream &operator>>(istream &is, mint &x) {
is >> x.x;
return is;
}
// mint
friend ostream &operator<<(ostream &os, const mint x) {
os << x.x;
return os;
}
};
/* #endregion */
/* #region Mat */
template <typename T> constexpr bool false_v = false;
// ==, !=, [] vector
template <class Num> class Mat : public vc<vc<Num>> {
public:
// using vc<vc<Num>>::vector;
size_t h, w;
//
Mat<Num>(const size_t h, size_t w) : vc<vc<Num>>(h, vc<Num>(w, 0)), h(h), w(w) {}
// Mat<Num>(const Mat<Num> &mt) : vc<vc<Num>>(mt), h(mt.h), w(mt.w) {}
Mat<Num>(std::initializer_list<vc<Num>> init) : vc<vc<Num>>() {
for (auto iter = init.begin(); iter != init.end(); ++iter) this->emplace_back(*iter);
h = this->size(), w = (*this)[0].size();
}
//
Mat &operator+=(const Mat &another) {
assert(this->h == another.h && this->w == another.w);
REP(i, 0, this->h) REP(j, 0, this->w)(*this)[i][j] += another[i][j];
return *this;
}
//
Mat &operator-=(const Mat &another) {
assert(this->h == another.h && this->w == another.w);
REP(i, 0, this->h) REP(j, 0, this->w)(*this)[i][j] -= another[i][j];
return *this;
}
//
Mat &operator*=(const Mat &another) {
assert(w == another.h);
Mat<Num> ret(this->h, another.w);
REP(i, 0, this->h) REP(j, 0, another.w) REP(k, 0, this->w) ret[i][j] += (*this)[i][k] * another[k][j];
*this = ret;
return *this;
}
//
Mat operator+(const Mat &another) const {
Mat<Num> ret(*this);
return ret += another;
}
//
Mat operator-(const Mat &another) const {
Mat<Num> ret(*this);
return ret -= another;
}
//
Mat operator*(const Mat &another) const {
Mat<Num> ret(*this);
return ret *= another;
}
// n
Mat pow(ll n) const {
assert(this->h == this->w);
Mat<Num> ret(this->h, this->w);
Mat<Num> a(*this);
REP(i, 0, this->h) ret[i][i] = 1;
while (n) {
if (n & 1) ret = a * ret;
a = a * a, n >>= 1;
}
return ret;
}
template <class... T> Mat assign(T... nums) {
vc<Num> num_list = vc<Num>{nums...};
assert(num_list.size() == this->h * this->w);
REP(i, 0, this->h) REP(j, 0, this->w)(*this)[i][j] = num_list[this->w * i + j];
return *this;
}
void fill(Num num) { REP(i, 0, this->h) REP(j, 0, this->w)(*this)[i][j] = num; }
void print() { REP(i, 0, h) REP(j, 0, w) cout << (*this)[i][j] << (j == (ll)w - 1 ? '\n' : ' '); }
};
/* #endregion */
// Problem
void solve() {
VAR(ll, n, m, T);
vll s(m), t(m);
REP(i, 0, m) cin >> s[i], t[i];
Mat<mint> mat(n, n);
mat.fill(0);
REP(i, 0, m) {
mat[s[i]][t[i]] = 1;
mat[t[i]][s[i]] = 1;
}
Mat<mint> dp(n, 1);
dp.fill(0);
dp[0][0] = 1;
dp = mat.pow(T) * dp;
pprint(dp[0][0]);
}
// entry point
int main() {
solve();
return 0;
}
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