結果
問題 | No.1396 Giri |
ユーザー | first_vil |
提出日時 | 2021-02-14 22:09:58 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 158 ms / 2,000 ms |
コード長 | 6,218 bytes |
コンパイル時間 | 1,910 ms |
コンパイル使用メモリ | 207,332 KB |
実行使用メモリ | 15,164 KB |
最終ジャッジ日時 | 2024-07-22 09:53:20 |
合計ジャッジ時間 | 4,379 ms |
ジャッジサーバーID (参考情報) |
judge3 / 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 | 22 ms
15,104 KB |
testcase_01 | AC | 24 ms
15,104 KB |
testcase_02 | AC | 158 ms
15,104 KB |
testcase_03 | AC | 23 ms
14,960 KB |
testcase_04 | AC | 22 ms
15,072 KB |
testcase_05 | AC | 154 ms
15,048 KB |
testcase_06 | AC | 22 ms
14,896 KB |
testcase_07 | AC | 23 ms
15,104 KB |
testcase_08 | AC | 23 ms
15,012 KB |
testcase_09 | AC | 21 ms
14,976 KB |
testcase_10 | AC | 23 ms
15,028 KB |
testcase_11 | AC | 22 ms
15,076 KB |
testcase_12 | AC | 21 ms
15,104 KB |
testcase_13 | AC | 21 ms
15,028 KB |
testcase_14 | AC | 21 ms
15,032 KB |
testcase_15 | AC | 22 ms
15,052 KB |
testcase_16 | AC | 22 ms
15,104 KB |
testcase_17 | AC | 23 ms
15,164 KB |
testcase_18 | AC | 31 ms
15,084 KB |
testcase_19 | AC | 89 ms
15,048 KB |
testcase_20 | AC | 121 ms
15,104 KB |
testcase_21 | AC | 145 ms
15,052 KB |
testcase_22 | AC | 157 ms
15,104 KB |
testcase_23 | AC | 157 ms
14,956 KB |
testcase_24 | AC | 155 ms
15,064 KB |
testcase_25 | AC | 158 ms
14,956 KB |
ソースコード
#include <bits/stdc++.h> using namespace std; using ll = long long; using ld = long double; using VI = vector<int>; using VL = vector<ll>; using VS = vector<string>; template<class T> using PQ = priority_queue<T, vector<T>, greater<T>>; using graph = vector<VI>; template<class T = ll> using w_graph = vector<vector<pair<int, T>>>; #define FOR(i,a,n) for(int i=(a);i<(n);++i) #define eFOR(i,a,n) for(int i=(a);i<=(n);++i) #define rFOR(i,a,n) for(int i=(n)-1;i>=(a);--i) #define erFOR(i,a,n) for(int i=(n);i>=(a);--i) #define SORT(a) sort(a.begin(),a.end()) #define rSORT(a) sort(a.rbegin(),a.rend()) #define fSORT(a,f) sort(a.begin(),a.end(),f) #define all(a) a.begin(),a.end() #define out(y,x) ((y)<0||h<=(y)||(x)<0||w<=(x)) #define tp(a,i) get<i>(a) #ifdef _DEBUG #define line cout << "-----------------------------\n" #define stop system("pause") #endif constexpr ll INF = 1000000000; constexpr ll LLINF = 1LL << 60; constexpr ll mod = 1000000007; constexpr ll MOD = 998244353; constexpr ld eps = 1e-10; constexpr ld pi = 3.1415926535897932; template<class T>inline bool chmax(T& a, const T& b) { if (a < b) { a = b; return true; }return false; } template<class T>inline bool chmin(T& a, const T& b) { if (a > b) { a = b; return true; }return false; } inline void init() { cin.tie(nullptr); cout.tie(nullptr); ios::sync_with_stdio(false); cout << fixed << setprecision(15); } template<class T>inline istream& operator>>(istream& is, vector<T>& v) { for (auto& a : v)is >> a; return is; } template<class T, class U>inline istream& operator>>(istream& is, pair<T, U>& p) { is >> p.first >> p.second; return is; } template<class T>inline vector<T> vec(size_t a) { return vector<T>(a); } template<class T>inline vector<T> defvec(T def, size_t a) { return vector<T>(a, def); } template<class T, class... Ts>inline auto vec(size_t a, Ts... ts) { return vector<decltype(vec<T>(ts...))>(a, vec<T>(ts...)); } template<class T, class... Ts>inline auto defvec(T def, size_t a, Ts... ts) { return vector<decltype(defvec<T>(def, ts...))>(a, defvec<T>(def, ts...)); } template<class T>inline void print(const T& a) { cout << a << "\n"; } template<class T, class... Ts>inline void print(const T& a, const Ts&... ts) { cout << a << " "; print(ts...); } template<class T>inline void print(const vector<T>& v) { for (int i = 0; i < v.size(); ++i)cout << v[i] << (i == v.size() - 1 ? "\n" : " "); } template<class T>inline void print(const vector<vector<T>>& v) { for (auto& a : v)print(a); } inline string reversed(const string& s) { string t = s; reverse(all(t)); return t; } template<class T>inline T sum(const vector<T>& a, int l, int r) { return a[r] - (l == 0 ? 0 : a[l - 1]); } template<class T>inline void END(T s) { print(s); exit(0); } void END() { exit(0); } template<int modulo> struct ModInt { int x; ModInt() : x(0) {} ModInt(ll y) : x(y >= 0 ? y % modulo : (modulo - (-y) % modulo) % modulo) {} ModInt& operator+=(const ModInt& p) { if ((x += p.x) >= modulo) x -= modulo; return *this; } ModInt& operator-=(const ModInt& p) { if ((x += modulo - p.x) >= modulo) x -= modulo; return *this; } ModInt& operator*=(const ModInt& p) { x = (int)(1LL * x * p.x % modulo); return *this; } ModInt& operator/=(const ModInt& p) { *this *= p.inverse(); return *this; } ModInt operator-() const { return ModInt(-x); } ModInt operator+(const ModInt& p) const { return ModInt(*this) += p; } ModInt operator-(const ModInt& p) const { return ModInt(*this) -= p; } ModInt operator*(const ModInt& p) const { return ModInt(*this) *= p; } ModInt operator/(const ModInt& p) const { return ModInt(*this) /= p; } bool operator==(const ModInt& p) const { return x == p.x; } bool operator!=(const ModInt& p) const { return x != p.x; } ModInt inverse() const { int a = x, b = modulo, u = 1, v = 0, t; while (b > 0) { t = a / b; a -= t * b; swap(a, b); u -= t * v; swap(u, v); } return ModInt(u); } ModInt pow(ll e) { ll a = 1, p = x; while (e > 0) { if (e % 2 == 0) { p = (p * p) % modulo; e /= 2; } else { a = (a * p) % modulo; e--; } } return ModInt(a); } friend ostream& operator<<(ostream& os, const ModInt<modulo>& p) { return os << p.x; } friend istream& operator>>(istream& is, ModInt<modulo>& a) { ll x; is >> x; a = ModInt<modulo>(x); return (is); } }; using modint = ModInt<MOD>; int main() { init(); int n; cin >> n; const int m = 1000000; vector<bool> prime(m + 1, true); prime[0] = prime[1] = false; VI d(m + 1); eFOR(i, 2, m)if (prime[i]) { d[i] = i; for (int j = i + i; j <= m; j += i) { prime[j] = false; d[j] = i; } } vector<pair<int, int>> ma(m + 1); eFOR(i, 1, n) { int x = i; while (x != 1) { int cnt = 0, div = d[x]; while (x % div == 0) { ++cnt; x /= div; } if (ma[div].first < cnt) { ma[div].second = -ma[div].first; ma[div].first = cnt; } else if (ma[div].first == cnt) { if (ma[div].second <= 0)ma[div].second = 2; else ma[div].second++; } } } int Max = 1; eFOR(i, 1, n) { int x = i, res = 1; while (x != 1) { int cnt = 0, div = d[x]; while (x % div == 0) { ++cnt; x /= div; } if (ma[div].first == cnt) { if (ma[div].second <= 0) { FOR(i, 0, cnt + ma[div].second)res *= div; } } } chmax(Max, res); } modint ans = 1; eFOR(i, 0, m) { if (!prime[i])continue; auto [key, val] = ma[i]; FOR(j, 0, key)ans *= i; } print(ans / Max); return 0; }