結果
問題 | No.1396 Giri |
ユーザー | commy |
提出日時 | 2021-02-14 21:55:24 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
TLE
|
実行時間 | - |
コード長 | 4,651 bytes |
コンパイル時間 | 1,188 ms |
コンパイル使用メモリ | 96,576 KB |
実行使用メモリ | 556,608 KB |
最終ジャッジ日時 | 2024-07-22 09:29:41 |
合計ジャッジ時間 | 22,648 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge2 |
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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 | 2 ms
5,376 KB |
testcase_02 | TLE | - |
testcase_03 | AC | 2 ms
5,376 KB |
testcase_04 | AC | 2 ms
5,376 KB |
testcase_05 | TLE | - |
testcase_06 | AC | 2 ms
5,376 KB |
testcase_07 | AC | 2 ms
5,376 KB |
testcase_08 | AC | 2 ms
5,376 KB |
testcase_09 | AC | 3 ms
5,376 KB |
testcase_10 | AC | 2 ms
5,376 KB |
testcase_11 | AC | 2 ms
5,376 KB |
testcase_12 | AC | 2 ms
5,376 KB |
testcase_13 | AC | 3 ms
5,376 KB |
testcase_14 | AC | 2 ms
5,376 KB |
testcase_15 | AC | 3 ms
5,376 KB |
testcase_16 | AC | 5 ms
5,376 KB |
testcase_17 | AC | 22 ms
9,472 KB |
testcase_18 | AC | 163 ms
44,580 KB |
testcase_19 | AC | 1,252 ms
289,788 KB |
testcase_20 | AC | 1,750 ms
399,560 KB |
testcase_21 | TLE | - |
testcase_22 | TLE | - |
testcase_23 | TLE | - |
testcase_24 | TLE | - |
testcase_25 | MLE | - |
ソースコード
#include <iostream> #include <vector> #include <algorithm> #include <string> #include <numeric> #include <utility> #include <tuple> #define rep(i, a, b) for (int i = int(a); i < int(b); i++) using namespace std; using ll = long long int; using P = pair<ll, ll>; // clang-format off #ifdef _DEBUG_ #define dump(...) do{ cerr << __LINE__ << ":\t" << #__VA_ARGS__ << " = "; PPPPP(__VA_ARGS__); cerr << endl; } while(false) template<typename T> void PPPPP(T t) { cerr << t; } template<typename T, typename... S> void PPPPP(T t, S... s) { cerr << t << ", "; PPPPP(s...); } #else #define dump(...) do{ } while(false) #endif template<typename T> vector<T> make_v(size_t a, T b) { return vector<T>(a, b); } template<typename... Ts> auto make_v(size_t a, Ts... ts) { return vector<decltype(make_v(ts...))>(a, make_v(ts...)); } template<typename T> bool chmin(T &a, T b) { if (a > b) {a = b; return true; } return false; } template<typename T> bool chmax(T &a, T b) { if (a < b) {a = b; return true; } return false; } template<typename T> void print(T a) { cout << a << '\n'; } template<typename T, typename... Ts> void print(T a, Ts... ts) { cout << a << ' '; print(ts...); } template<typename T> istream &operator,(istream &in, T &t) { return in >> t; } // clang-format on template<ll MOD = 1000000007> class ModInt { ll n; ModInt constexpr inverse() const { return ModInt::pow(*this, MOD - 2); } public: ModInt() : n(0) {} ModInt(ll _n) : n(((_n % MOD) + MOD) % MOD) {} ModInt operator+=(const ModInt &m) { n += m.n; if (n >= MOD) n -= MOD; return *this; } ModInt operator-=(const ModInt &m) { n -= m.n; if (n < 0) n += MOD; return *this; } ModInt operator*=(const ModInt &m) { n *= m.n; if (n >= MOD) n %= MOD; return *this; } ModInt operator/=(const ModInt &m) { (*this) *= m.inverse(); return *this; } friend ModInt operator+(ModInt t, const ModInt &m) { return t += m; } friend ModInt operator-(ModInt t, const ModInt &m) { return t -= m; } friend ModInt operator*(ModInt t, const ModInt &m) { return t *= m; } friend ModInt operator/(ModInt t, const ModInt &m) { return t /= m; } ModInt operator=(const ll l) { n = l % MOD; if (n < 0) n += MOD; return *this; } friend ostream &operator<<(ostream &out, const ModInt &m) { out << m.n; return out; } friend istream &operator>>(istream &in, ModInt &m) { ll l; in >> l; m = l; return in; } static constexpr ModInt pow(const ModInt x, ll p) { ModInt<MOD> ans = 1; for (ModInt<MOD> m = x; p > 0; p /= 2, m *= m) { if (p % 2) ans *= m; } return ans; } }; using mint = ModInt<998244353>; mint operator"" _m(unsigned long long m) { return mint(m); } class Eratosthenes { vector<int> plist; public: Eratosthenes(int sz) : plist(sz, -1) { for (int i = 2; i < sz; i++) { if (plist[i] == -1) { for (int j = i; j < sz; j += i) { if (plist[j] == -1) { plist[j] = i; } } } } } bool isPrime(int n) { return plist[n] == n; } vector<int> factor(int n) { vector<int> res; while (n > 1) { res.push_back(plist[n]); n /= plist[n]; } return res; } }; #include <map> int main() { cin.tie(nullptr); ios::sync_with_stdio(false); int n; cin, n; Eratosthenes era(n + 1); vector<map<int, int>> lst(n); map<int, int> mx1, mx2; mint ans = 1; vector<map<int, int>> v1(n), v2(n); rep(i, 1, n + 1) { auto res = era.factor(i); for (auto e : res) { lst[i - 1][e]++; } for (auto [e, c] : lst[i - 1]) { v1[i - 1][e] = mx1[e]; mx1[e] = max(mx1[e], c); } } for (auto [n, c] : mx1) { rep(i, 0, c) { ans *= n; } } for (int i = n; i >= 1; i--) { for (auto [e, c] : lst[i - 1]) { v2[i - 1][e] = mx2[e]; mx2[e] = max(mx2[e], c); } } ll m = 1; rep(i, 1, n + 1) { ll t = 1; for (auto [e, c] : lst[i - 1]) { ll cc = max(v1[i - 1][e], v2[i - 1][e]); rep(j, cc, c) { t *= e; } } // dump(i, t); chmax(m, t); } print(ans / m); return 0; }