結果
問題 | No.1188 レベルX門松列 |
ユーザー | Shuz* |
提出日時 | 2020-08-22 13:53:46 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 53 ms / 2,000 ms |
コード長 | 8,675 bytes |
コンパイル時間 | 1,713 ms |
コンパイル使用メモリ | 176,864 KB |
実行使用メモリ | 7,424 KB |
最終ジャッジ日時 | 2024-10-15 08:09:05 |
合計ジャッジ時間 | 3,223 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 | 30 ms
7,296 KB |
testcase_01 | AC | 42 ms
6,816 KB |
testcase_02 | AC | 38 ms
6,816 KB |
testcase_03 | AC | 50 ms
7,424 KB |
testcase_04 | AC | 53 ms
7,424 KB |
testcase_05 | AC | 2 ms
6,816 KB |
testcase_06 | AC | 26 ms
7,168 KB |
testcase_07 | AC | 49 ms
7,424 KB |
testcase_08 | AC | 48 ms
7,296 KB |
testcase_09 | AC | 2 ms
6,816 KB |
testcase_10 | AC | 2 ms
6,816 KB |
testcase_11 | AC | 5 ms
6,816 KB |
testcase_12 | AC | 5 ms
6,816 KB |
testcase_13 | AC | 5 ms
6,820 KB |
testcase_14 | AC | 31 ms
6,820 KB |
testcase_15 | AC | 53 ms
7,168 KB |
testcase_16 | AC | 3 ms
6,816 KB |
testcase_17 | AC | 41 ms
6,820 KB |
testcase_18 | AC | 2 ms
6,820 KB |
testcase_19 | AC | 38 ms
6,816 KB |
testcase_20 | AC | 2 ms
6,816 KB |
testcase_21 | AC | 2 ms
6,820 KB |
testcase_22 | AC | 2 ms
6,820 KB |
testcase_23 | AC | 2 ms
6,820 KB |
ソースコード
#include <bits/stdc++.h> using namespace std; //#pragma GCC target("arch=skylake-avx512") #pragma region template // Define using ll = long long; using ull = unsigned long long; using ld = long double; template <class T> using pvector = vector<pair<T, T>>; template <class T> using rpriority_queue = priority_queue<T, vector<T>, greater<T>>; constexpr const ll dx[4] = {1, 0, -1, 0}; constexpr const ll dy[4] = {0, 1, 0, -1}; constexpr const ll MOD = 1e9 + 7; constexpr const ll mod = 998244353; constexpr const ll INF = 1LL << 60; constexpr const ll inf = 1 << 30; constexpr const char rt = '\n'; constexpr const char sp = ' '; #define rt(i, n) (i == (ll)(n) -1 ? rt : sp) #define len(x) ((ll)(x).size()) #define all(x) (x).begin(), (x).end() #define rall(x) (x).rbegin(), (x).rend() #define mp make_pair #define mt make_tuple #define pb push_back #define eb emplace_back #define ifn(x) if (not(x)) #define elif else if #define elifn else ifn #define fi first #define se second #define uniq(x) (sort(all(x)), (x).erase(unique(all(x)), (x).end())) using graph = vector<vector<ll>>; template <class T> using wgraph = vector<vector<ll, T>>; bool __DIRECTED__ = true; bool __ZERO_INDEXED__ = false; istream &operator>>(istream &is, graph &g) { ll a, b; is >> a >> b; if (__ZERO_INDEXED__ == false) a--, b--; g[a].pb(b); if (__DIRECTED__ == false) g[b].pb(a); return is; } template <class T> istream &operator>>(istream &is, wgraph<T> &g) { ll a, b; T c; is >> a >> b >> c; if (__ZERO_INDEXED__ == false) a--, b--; g[a].pb({b, c}); if (__DIRECTED__ == false) g[b].pb({a, c}); return is; } template <class T> bool chmax(T &a, const T &b) { if (a < b) { a = b; return 1; } return 0; } template <class T> bool chmin(T &a, const T &b) { if (a > b) { a = b; return 1; } return 0; } // Debug #define debug(...) \ { \ cerr << __LINE__ << ": " << #__VA_ARGS__ << " = "; \ for (auto &&__i : {__VA_ARGS__}) cerr << "[" << __i << "] "; \ cerr << rt; \ } #define dump(a, h, w) \ { \ cerr << __LINE__ << ": " << #a << " = [" << rt; \ rep(__i, h) { \ rep(__j, w) { \ if (abs(a[__i][__j]) >= INF / 2 and a[__i][__j] <= -INF / 2) cerr << '-'; \ if (abs(a[__i][__j]) >= INF / 2) cerr << "∞" << sp; \ else \ cerr << a[__i][__j] << sp; \ } \ cerr << rt; \ } \ cerr << "]" << rt; \ } #define vdump(a, n) \ { \ cerr << __LINE__ << ": " << #a << " = ["; \ rep(__i, n) { \ if (__i) cerr << sp; \ if (abs(a[__i]) >= INF / 2 and a[__i] <= -INF / 2) cerr << '-'; \ if (abs(a[__i]) >= INF / 2) cerr << "∞" << sp; \ else \ cerr << a[__i]; \ } \ cerr << "]" << rt; \ } // Loop #define inc(i, a, n) for (ll i = (a), _##i = (n); i <= _##i; ++i) #define dec(i, a, n) for (ll i = (a), _##i = (n); i >= _##i; --i) #define rep(i, n) for (ll i = 0, _##i = (n); i < _##i; ++i) #define each(i, a) for (auto &&i : a) // Stream #define fout(n) cout << fixed << setprecision(n) struct io { io() { cin.tie(nullptr), ios::sync_with_stdio(false); } } io; // Speed #pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,avx2,tune=native") #pragma GCC optimize("Ofast,unroll-loops") // Math inline constexpr ll gcd(const ll a, const ll b) { return b ? gcd(b, a % b) : a; } inline constexpr ll lcm(const ll a, const ll b) { return a / gcd(a, b) * b; } inline constexpr ll modulo(const ll n, const ll m = MOD) { ll k = n % m; return k + m * (k < 0); } inline constexpr ll chmod(ll &n, const ll m = MOD) { n %= m; return n += m * (n < 0); } inline constexpr ll mpow(ll a, ll n, const ll m = MOD) { ll r = 1; rep(i, 64) { if (n & (1LL << i)) r *= a; chmod(r, m); a *= a; chmod(a, m); } return r; } inline ll inv(const ll n, const ll m = MOD) { ll a = n, b = m, x = 1, y = 0; while (b) { ll t = a / b; a -= t * b; swap(a, b); x -= t * y; swap(x, y); } return modulo(x, m); } #pragma endregion const ll mo = mod; struct mint { ll x; mint(ll n = 0) : x((n % mo + mo) % mo) {} mint operator-() const { return mint(-x); } mint &operator+=(const mint &a) { if ((x += a.x) >= mo) x -= mo; return *this; } mint &operator-=(const mint &a) { if ((x += mo - a.x) >= mo) x -= mo; return *this; } mint &operator*=(const mint &a) { (x *= a.x) %= mo; return *this; } mint operator+(const mint &a) const { return mint(*this) += a; } mint operator-(const mint &a) const { return mint(*this) -= a; } mint operator*(const mint &a) const { return mint(*this) *= a; } bool operator==(const mint &a) const { return x == a.x; } bool operator!=(const mint &a) const { return x != a.x; } bool operator<=(const mint &a) { return x <= a.x; } bool operator<(const mint &a) { return x < a.x; } friend ll abs(const mint &a) { return a.x; } friend mint pow(const mint &a, ll n) { if (!n) return 1; mint b = pow(a, n >> 1); b *= b; if (n & 1) b *= a; return b; } mint inv() const { return pow(*this, mo - 2); } mint &operator/=(mint a) { return (*this) *= a.inv(); } mint operator/(mint a) const { return mint(*this) /= a; } friend istream &operator>>(istream &is, mint &a) { ll t; is >> t; a = mint(t); return is; } friend ostream &operator<<(ostream &os, mint a) { os << a.x; return os; } }; mint operator""_M(const ull n) { return mint(n); } signed main() { ll N; cin >> N; ll A[N]; rep(i, N) cin >> A[i]; ll DP1[N], DP2[N], mem1[N], mem2[N], res = 0; rep(i, N) DP1[i] = DP2[i] = INF; rep(i, N) { *lower_bound(DP1, DP1 + N, A[i]) = A[i]; *lower_bound(DP2, DP2 + N, A[N - 1 - i]) = A[N - 1 - i]; mem1[i] = lower_bound(DP1, DP1 + N, INF) - DP1; mem2[N - 1 - i] = lower_bound(DP2, DP2 + N, INF) - DP2; } rep(i, N) chmax(res, min(mem1[i], mem2[i]) - 1); rep(i, N) DP1[i] = DP2[i] = -INF; rep(i, N) { auto it1 = upper_bound(DP1, DP1 + N, A[i]); *(--it1) = A[i]; auto it2 = upper_bound(DP2, DP2 + N, A[N - 1 - i]); *(--it2) = A[N - 1 - i]; mem1[i] = (DP1 + N) - upper_bound(DP1, DP1 + N, -INF); mem2[N - 1 - i] = (DP2 + N) - upper_bound(DP2, DP2 + N, -INF); } rep(i, N) chmax(res, min(mem1[i], mem2[i]) - 1); cout << res << rt; }