結果
問題 | No.1529 Constant Lcm |
ユーザー | masutech16 |
提出日時 | 2021-06-04 20:40:04 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 5,758 bytes |
コンパイル時間 | 2,145 ms |
コンパイル使用メモリ | 208,140 KB |
実行使用メモリ | 354,928 KB |
最終ジャッジ日時 | 2024-11-19 09:57:14 |
合計ジャッジ時間 | 7,512 ms |
ジャッジサーバーID (参考情報) |
judge5 / 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 | 2 ms
5,248 KB |
testcase_01 | AC | 3 ms
5,248 KB |
testcase_02 | AC | 2 ms
5,248 KB |
testcase_03 | AC | 2 ms
5,248 KB |
testcase_04 | AC | 2 ms
5,248 KB |
testcase_05 | AC | 2 ms
5,248 KB |
testcase_06 | AC | 2 ms
5,248 KB |
testcase_07 | AC | 2 ms
5,248 KB |
testcase_08 | AC | 2 ms
5,248 KB |
testcase_09 | AC | 2 ms
5,248 KB |
testcase_10 | WA | - |
testcase_11 | AC | 154 ms
131,188 KB |
testcase_12 | AC | 10 ms
10,112 KB |
testcase_13 | WA | - |
testcase_14 | AC | 220 ms
181,632 KB |
testcase_15 | AC | 234 ms
191,404 KB |
testcase_16 | AC | 182 ms
149,212 KB |
testcase_17 | WA | - |
testcase_18 | WA | - |
testcase_19 | AC | 226 ms
186,264 KB |
testcase_20 | WA | - |
testcase_21 | WA | - |
testcase_22 | AC | 426 ms
354,900 KB |
testcase_23 | WA | - |
testcase_24 | AC | 427 ms
354,760 KB |
testcase_25 | AC | 428 ms
354,928 KB |
ソースコード
#line 1 "/workspaces/compro/lib/math/modint.hpp" #include <cassert> #include <cstdint> #include <iostream> #include <vector> #ifndef MOD_INT #define MOD_INT template <std::uint_fast64_t MOD> class ModInt { using u64 = std::uint_fast64_t; public: ModInt(const u64 val = 0) { value = val % MOD; } ModInt operator+(const ModInt rhs) const { return ModInt(*this) += rhs; } ModInt operator-(const ModInt rhs) const { return ModInt(*this) -= rhs; } ModInt operator*(const ModInt rhs) const { return ModInt(*this) *= rhs; } ModInt operator/(const ModInt rhs) const { return ModInt(*this) /= rhs; } ModInt &operator+=(const ModInt rhs) { value += rhs.value; if (value >= MOD) { value -= MOD; } return *this; } ModInt &operator-=(const ModInt rhs) { if (value < rhs.value) { value += MOD; } value -= rhs.value; return *this; } ModInt &operator*=(const ModInt rhs) { value = value * rhs.value % MOD; return *this; } ModInt &operator/=(ModInt rhs) { *this *= rhs.inv(); return *this; } ModInt &operator++(int n) { value++; if (value >= MOD) { value -= MOD; } return *this; } ModInt &operator--(int n) { if (value == 0) { value += MOD; } value--; return *this; } ModInt inv() { return ModInt::pow(*this, MOD - 2); } static ModInt pow(ModInt base, long long int n) { ModInt res = ModInt(1); while (n) { if (n & 1) { res *= base; } base *= base; n /= 2; } return res; } static ModInt comb(ModInt n, ModInt r) { return comb(n.value, r.value); } static ModInt comb(int n, int r) { if (n < r) return ModInt(0); ModInt res = ModInt(1); for (int i = 0; i < r; i++) { res *= ModInt(n - i); } ModInt inv = ModInt(1); for (int i = 0; i < r; i++) { inv *= ModInt(r - i); } return res / inv; } // nC0からnCnまでを計算する。計算量はO(n) // @param n 要素数 // @param vec 結果を格納する配列 static void combination_table(int n, std::vector<ModInt> &vec) { assert(static_cast<int>(vec.size()) >= n + 1); vec[0] = ModInt(1); for (int r = 1; r < n + 1; r++) { vec[r] = vec[r - 1] * ModInt(n - r + 1) / ModInt(r); } } // n!までを計算する // @param n 要素数 // @param vec 結果を格納する配列 static void factorial_table(int n, std::vector<ModInt> &vec) { assert(static_cast<int>(vec.size()) >= n + 1); vec[0] = ModInt(1); for (int r = 1; r <= n; r++) { vec[r] = vec[r - 1] * ModInt(r); } } u64 getValue() const { return value; } private: u64 value; friend std::ostream &operator<<(std::ostream &out, const ModInt<MOD> &m) { out << m.value; return out; } friend std::istream &operator>>(std::istream &in, ModInt &m) { uint_fast64_t i; in >> i; m = ModInt(i); return in; } }; #endif #line 1 "/workspaces/compro/lib/template.hpp" #line 3 "/workspaces/compro/lib/io/vector.hpp" #ifndef IO_VECTOR #define IO_VECTOR template <class T> std::ostream &operator<<(std::ostream &out, const std::vector<T> &v) { int size = v.size(); for (int i = 0; i < size; i++) { std::cout << v[i]; if (i != size - 1) std::cout << " "; } return out; } template <class T> std::istream &operator>>(std::istream &in, std::vector<T> &v) { for (auto &el : v) { std::cin >> el; } return in; } #endif #line 4 "/workspaces/compro/lib/template.hpp" #include <bits/stdc++.h> #define REP(i, n) for (int i = 0; i < n; i++) #define FOR(i, m, n) for (int i = m; i < n; i++) #define ALL(v) (v).begin(), (v).end() #define coutd(n) cout << fixed << setprecision(n) #define ll long long int #define vl vector<ll> #define vi vector<int> #define MM << " " << using namespace std; template <class T> void chmin(T &a, T b) { if (a > b) a = b; } template <class T> void chmax(T &a, T b) { if (a < b) a = b; } // 重複を消す。計算量はO(NlogN) template <class T> void unique(std::vector<T> &v) { std::sort(v.begin(), v.end()); v.erase(std::unique(v.begin(), v.end()), v.end()); } #line 3 "main.cpp" constexpr long long MOD = 998244353; using mint = ModInt<MOD>; std::vector<int> prime_int_table(const int n) { int size = n + 1; std::vector<int> table(size, -1); for (int i = 2; i < size; i++) { if (table[i] != -1) continue; table[i] = i; for (int k = 2; i * k < size; k++) { if (table[i * k] == -1) { table[i * k] = i; } } } return table; } mint solve(int N) { auto table = prime_int_table(N); vector<int> idx(1001, -1); vi rev; int cp = 0; REP(i, min(1000, N) + 1) { if (table.at(i) != i) continue; idx[i] = cp; rev.push_back(i); cp++; } vector<vi> memo((N + 1) / 2, vi(cp, 0)); for (int i = 1; i <= N - i; i++) { assert(i <= (N + 1) / 2); int tmp = i; while (table[tmp] != -1) { if (table[tmp] < 1000) memo[i - 1][idx[table[tmp]]]++; tmp /= table[tmp]; } tmp = N - i; while (table[tmp] != -1) { if (table[tmp] < 1000) memo[i - 1][idx[table[tmp]]]++; tmp /= table[tmp]; } } mint ans = 1; FOR(i, 1000, N) { if (table[i] == i) ans *= mint(i); } FOR(i, 1, (N + 1) / 2) { REP(j, cp) { chmax(memo[i][j], memo[i - 1][j]); } } REP(j, cp) { int a = memo[(N + 1) / 2 - 1][j]; ans *= mint::pow(rev[j], a); } return ans; } // generated by online-judge-template-generator v4.7.1 (https://github.com/online-judge-tools/template-generator) int main() { int N; std::cin >> N; auto ans = solve(N); std::cout << ans << std::endl; return 0; }