結果
問題 | No.2433 Min Increasing Sequence |
ユーザー | t98slider |
提出日時 | 2023-08-18 22:59:14 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 35 ms / 2,000 ms |
コード長 | 6,157 bytes |
コンパイル時間 | 1,788 ms |
コンパイル使用メモリ | 171,692 KB |
実行使用メモリ | 8,904 KB |
最終ジャッジ日時 | 2024-11-28 09:26:44 |
合計ジャッジ時間 | 3,727 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge1 |
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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
6,820 KB |
testcase_01 | AC | 2 ms
6,820 KB |
testcase_02 | AC | 2 ms
6,816 KB |
testcase_03 | AC | 2 ms
6,820 KB |
testcase_04 | AC | 30 ms
8,904 KB |
testcase_05 | AC | 24 ms
6,816 KB |
testcase_06 | AC | 25 ms
8,608 KB |
testcase_07 | AC | 17 ms
6,816 KB |
testcase_08 | AC | 27 ms
8,632 KB |
testcase_09 | AC | 35 ms
8,404 KB |
testcase_10 | AC | 13 ms
6,816 KB |
testcase_11 | AC | 20 ms
6,820 KB |
testcase_12 | AC | 10 ms
6,820 KB |
testcase_13 | AC | 9 ms
6,820 KB |
testcase_14 | AC | 20 ms
6,820 KB |
testcase_15 | AC | 10 ms
6,820 KB |
testcase_16 | AC | 11 ms
6,816 KB |
testcase_17 | AC | 8 ms
6,816 KB |
testcase_18 | AC | 30 ms
8,776 KB |
testcase_19 | AC | 28 ms
8,808 KB |
testcase_20 | AC | 3 ms
6,820 KB |
testcase_21 | AC | 26 ms
8,608 KB |
testcase_22 | AC | 29 ms
8,764 KB |
testcase_23 | AC | 25 ms
8,668 KB |
testcase_24 | AC | 30 ms
8,836 KB |
testcase_25 | AC | 27 ms
8,656 KB |
testcase_26 | AC | 22 ms
8,320 KB |
testcase_27 | AC | 26 ms
8,568 KB |
testcase_28 | AC | 24 ms
8,456 KB |
testcase_29 | AC | 7 ms
6,820 KB |
testcase_30 | AC | 6 ms
6,820 KB |
testcase_31 | AC | 5 ms
6,820 KB |
ソースコード
#include <bits/stdc++.h> using namespace std; using ll = long long; template<class T> istream& operator >> (istream& is, vector<T>& vec) { for(T& x : vec) is >> x; return is; } template<class T> ostream& operator << (ostream& os, const vector<T>& vec) { if(vec.empty()) return os; os << vec[0]; for(auto it = vec.begin(); ++it != vec.end(); ) os << ' ' << *it; return os; } template<const unsigned int MOD> struct prime_modint { using mint = prime_modint; unsigned int v; prime_modint() : v(0) {} prime_modint(unsigned int a) { a %= MOD; v = a; } prime_modint(unsigned long long a) { a %= MOD; v = a; } prime_modint(int a) { a %= (int)(MOD); if(a < 0)a += MOD; v = a; } prime_modint(long long a) { a %= (int)(MOD); if(a < 0)a += MOD; v = a; } static constexpr int mod() { return MOD; } mint& operator++() {v++; if(v == MOD)v = 0; return *this;} mint& operator--() {if(v == 0)v = MOD; v--; return *this;} mint operator++(int) { mint result = *this; ++*this; return result; } mint operator--(int) { mint result = *this; --*this; return result; } mint& operator+=(const mint& rhs) { v += rhs.v; if(v >= MOD) v -= MOD; return *this; } mint& operator-=(const mint& rhs) { if(v < rhs.v) v += MOD; v -= rhs.v; return *this; } mint& operator*=(const mint& rhs) { v = (unsigned int)((unsigned long long)(v) * rhs.v % MOD); return *this; } mint& operator/=(const mint& rhs) { return *this = *this * rhs.inv(); } mint operator+() const { return *this; } mint operator-() const { return mint() - *this; } mint pow(long long n) const { assert(0 <= n); mint r = 1, x = *this; while (n) { if (n & 1) r *= x; x *= x; n >>= 1; } return r; } mint inv() const { assert(v); return pow(MOD - 2); } friend mint operator+(const mint& lhs, const mint& rhs) { return mint(lhs) += rhs; } friend mint operator-(const mint& lhs, const mint& rhs) { return mint(lhs) -= rhs; } friend mint operator*(const mint& lhs, const mint& rhs) { return mint(lhs) *= rhs; } friend mint operator/(const mint& lhs, const mint& rhs) { return mint(lhs) /= rhs; } friend bool operator==(const mint& lhs, const mint& rhs) { return (lhs.v == rhs.v); } friend bool operator!=(const mint& lhs, const mint& rhs) { return (lhs.v != rhs.v); } friend std::ostream& operator << (std::ostream &os, const mint& rhs) noexcept { return os << rhs.v; } }; //using mint = prime_modint<1000000007>; using mint = prime_modint<998244353>; template <class S, S (*op)(S, S), S (*e)()> struct segtree { public: segtree() : segtree(0) {} segtree(int n) : segtree(std::vector<S>(n, e())) {} segtree(const std::vector<S>& v) : _n(int(v.size())) { log = ceil_pow2(_n); size = 1 << log; d = std::vector<S>(2 * size, e()); for (int i = 0; i < _n; i++) d[size + i] = v[i]; for (int i = size - 1; i >= 1; i--) { update(i); } } void set(int p, S x) { assert(0 <= p && p < _n); p += size; d[p] = x; for (int i = 1; i <= log; i++) update(p >> i); } S get(int p) { assert(0 <= p && p < _n); return d[p + size]; } const S operator[](int p) const { return get(p); } S operator[](int p) { return get(p); } S prod(int l, int r) { assert(0 <= l && l <= r && r <= _n); S sml = e(), smr = e(); l += size; r += size; while (l < r) { if (l & 1) sml = op(sml, d[l++]); if (r & 1) smr = op(d[--r], smr); l >>= 1; r >>= 1; } return op(sml, smr); } S all_prod() { return d[1]; } template <bool (*f)(S)> int max_right(int l) { return max_right(l, [](S x) { return f(x); }); } template <class F> int max_right(int l, F f) { assert(0 <= l && l <= _n); assert(f(e())); if (l == _n) return _n; l += size; S sm = e(); do { while (l % 2 == 0) l >>= 1; if (!f(op(sm, d[l]))) { while (l < size) { l = (2 * l); if (f(op(sm, d[l]))) { sm = op(sm, d[l]); l++; } } return l - size; } sm = op(sm, d[l]); l++; } while ((l & -l) != l); return _n; } template <bool (*f)(S)> int min_left(int r) { return min_left(r, [](S x) { return f(x); }); } template <class F> int min_left(int r, F f) { assert(0 <= r && r <= _n); assert(f(e())); if (r == 0) return 0; r += size; S sm = e(); do { r--; while (r > 1 && (r % 2)) r >>= 1; if (!f(op(d[r], sm))) { while (r < size) { r = (2 * r + 1); if (f(op(d[r], sm))) { sm = op(d[r], sm); r--; } } return r + 1 - size; } sm = op(d[r], sm); } while ((r & -r) != r); return 0; } private: int _n, size, log; std::vector<S> d; int ceil_pow2(int n) { int x = 0; while ((1U << x) < (unsigned int)(n)) x++; return x; } void update(int k) { d[k] = op(d[2 * k], d[2 * k + 1]); } }; using S = pair<int,int>; S op(S lhs, S rhs){ return min(lhs, rhs); } S e(){ return make_pair(1 << 30, 1 << 30); } int main(){ ios::sync_with_stdio(false); cin.tie(0); int n; cin >> n; vector<pair<int,int>> a(n); for(int i = 0; i < n; i++){ cin >> a[i].first; a[i].second = i; } segtree<S, op, e> seg(a); mint ans = 1; int pre = seg.all_prod().second; int p = seg.prod(pre + 1, n).second; while(p < n){ ans *= p - pre + 1; pre = p; p = seg.prod(p + 1, n).second; } cout << ans << '\n'; }