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 13:43:40 |
| 言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 8,242 bytes |
| コンパイル時間 | 2,144 ms |
| コンパイル使用メモリ | 173,304 KB |
| 実行使用メモリ | 5,888 KB |
| 最終ジャッジ日時 | 2024-10-15 07:58:10 |
| 合計ジャッジ時間 | 2,848 ms |
|
ジャッジサーバーID （参考情報） |
judge2 / judge4 |
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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 | 25 ms
5,760 KB |
| testcase_01 | WA | - |
| testcase_02 | WA | - |
| testcase_03 | WA | - |
| testcase_04 | WA | - |
| testcase_05 | WA | - |
| testcase_06 | AC | 26 ms
5,760 KB |
| testcase_07 | AC | 29 ms
5,888 KB |
| testcase_08 | AC | 29 ms
5,888 KB |
| testcase_09 | AC | 2 ms
5,248 KB |
| testcase_10 | WA | - |
| testcase_11 | WA | - |
| testcase_12 | WA | - |
| testcase_13 | WA | - |
| testcase_14 | WA | - |
| testcase_15 | WA | - |
| testcase_16 | WA | - |
| testcase_17 | WA | - |
| testcase_18 | WA | - |
| testcase_19 | WA | - |
| testcase_20 | AC | 2 ms
5,248 KB |
| testcase_21 | AC | 1 ms
5,248 KB |
| testcase_22 | AC | 1 ms
5,248 KB |
| testcase_23 | WA | - |
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], res = 0;
rep(i, N) DP1[i] = INF, DP2[i] = -INF;
rep(i, N) {
*lower_bound(DP1, DP1 + N, A[i]) = A[i];
auto it = lower_bound(DP2, DP2 + N, A[N - 1 - i]);
*(--it) = A[N - 1 - i];
auto it2 = lower_bound(DP1, DP1 + N, INF);
chmax(res, min(ll(it2 - 1 - DP1), ll((DP2 + N) - upper_bound(DP2, DP2 + N, -INF))));
}
cout << res << rt;
}