結果
問題 | No.1188 レベルX門松列 |
ユーザー | hamray |
提出日時 | 2020-11-21 00:34:26 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 5,761 bytes |
コンパイル時間 | 2,033 ms |
コンパイル使用メモリ | 184,112 KB |
実行使用メモリ | 6,284 KB |
最終ジャッジ日時 | 2024-07-23 14:11:44 |
合計ジャッジ時間 | 4,495 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge5 |
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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 | 113 ms
6,284 KB |
testcase_01 | AC | 127 ms
6,068 KB |
testcase_02 | WA | - |
testcase_03 | WA | - |
testcase_04 | WA | - |
testcase_05 | AC | 2 ms
5,376 KB |
testcase_06 | AC | 110 ms
6,284 KB |
testcase_07 | AC | 122 ms
6,280 KB |
testcase_08 | AC | 121 ms
6,280 KB |
testcase_09 | AC | 2 ms
5,376 KB |
testcase_10 | AC | 2 ms
5,376 KB |
testcase_11 | AC | 11 ms
5,376 KB |
testcase_12 | WA | - |
testcase_13 | WA | - |
testcase_14 | AC | 89 ms
5,376 KB |
testcase_15 | WA | - |
testcase_16 | AC | 3 ms
5,376 KB |
testcase_17 | AC | 123 ms
5,844 KB |
testcase_18 | AC | 2 ms
5,376 KB |
testcase_19 | AC | 107 ms
5,756 KB |
testcase_20 | AC | 2 ms
5,376 KB |
testcase_21 | AC | 2 ms
5,376 KB |
testcase_22 | AC | 2 ms
5,376 KB |
testcase_23 | AC | 2 ms
5,376 KB |
コンパイルメッセージ
main.cpp:204:7: warning: use of 'auto' in parameter declaration only available with '-std=c++20' or '-fconcepts' 204 | int f(auto& vp, int N){ | ^~~~
ソースコード
#include <bits/stdc++.h> //#include <atcoder/all> //using namespace atcoder; #pragma GCC target ("avx2") #pragma GCC optimization ("O3") #pragma GCC optimization ("unroll-loops") const double pi = 3.141592653589793238462643383279; using namespace std; //typedef //------------------------------------------ typedef vector<int> VI; typedef vector<VI> VVI; typedef vector<string> VS; typedef pair<int, int> PII; typedef pair<long long, long long> PLL; typedef pair<int, PII> TIII; typedef long long LL; typedef unsigned long long ULL; typedef vector<LL> VLL; typedef vector<VLL> VVLL; //container util //------------------------------------------ #define ALL(a) (a).begin(), (a).endf() #define RALL(a) (a).rbegin(), (a).rend() #define PB push_back #define MP make_pair #define SZ(a) int((a).size()) #define SQ(a) ((a) * (a)) #define EACH(i, c) for (typeof((c).begin()) i = (c).begin(); i != (c).endf(); ++i) #define EXIST(s, e) ((s).find(e) != (s).endf()) #define SORT(c) sort((c).begin(), (c).endf()) //repetition //------------------------------------------ #define FOR(i, s, n) for (int i = s; i < (int)n; ++i) #define REP(i, n) FOR(i, 0, n) #define MOD 1000000007 #define rep(i, a, b) for (int i = a; i < (b); ++i) #define trav(a, x) for (auto &a : x) #define all(x) x.begin(), x.end() typedef long long ll; typedef pair<int, int> pii; typedef vector<int> vi; #define chmin(x, y) x = min(x, y) #define chmax(x, y) x = max(x, y) const double EPS = 1e-4, PI = acos(-1); //ここから編集 typedef string::const_iterator State; template< int mod > struct ModInt { int x; ModInt() : x(0) {} ModInt(int64_t y) : x(y >= 0 ? y % mod : (mod - (-y) % mod) % mod) {} ModInt &operator+=(const ModInt &p) { if((x += p.x) >= mod) x -= mod; return *this; } ModInt &operator-=(const ModInt &p) { if((x += mod - p.x) >= mod) x -= mod; return *this; } ModInt &operator*=(const ModInt &p) { x = (int) (1LL * x * p.x % mod); 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 = mod, u = 1, v = 0, t; while(b > 0) { t = a / b; swap(a -= t * b, b); swap(u -= t * v, v); } return ModInt(u); } ModInt pow(int64_t n) const { ModInt ret(1), mul(x); while(n > 0) { if(n & 1) ret *= mul; mul *= mul; n >>= 1; } return ret; } friend ostream &operator<<(ostream &os, const ModInt &p) { return os << p.x; } friend istream &operator>>(istream &is, ModInt &a) { int64_t t; is >> t; a = ModInt< mod >(t); return (is); } static int get_mod() { return mod; } }; using modint = ModInt< 998244353 >; template< typename T > struct Combination { vector< T > _fact, _rfact, _inv; Combination(int sz) : _fact(sz + 1), _rfact(sz + 1), _inv(sz + 1) { _fact[0] = _rfact[sz] = _inv[0] = 1; for(int i = 1; i <= sz; i++) _fact[i] = _fact[i - 1] * i; _rfact[sz] /= _fact[sz]; for(int i = sz - 1; i >= 0; i--) _rfact[i] = _rfact[i + 1] * (i + 1); for(int i = 1; i <= sz; i++) _inv[i] = _rfact[i] * _fact[i - 1]; } inline T fact(int k) const { return _fact[k]; } inline T rfact(int k) const { return _rfact[k]; } inline T inv(int k) const { return _inv[k]; } T P(int n, int r) const { if(r < 0 || n < r) return 0; return fact(n) * rfact(n - r); } T C(int p, int q) const { if(q < 0 || p < q) return 0; return fact(p) * rfact(q) * rfact(p - q); } T H(int n, int r) const { if(n < 0 || r < 0) return (0); return r == 0 ? 1 : C(n + r - 1, r); } }; template <typename Monoid> struct SegmentTree{ int N; vector<Monoid> node; Monoid Unit; function<Monoid(Monoid, Monoid)> f; SegmentTree(vector<Monoid> v, const function<Monoid(Monoid, Monoid)> f, const Monoid &Unit): f(f), Unit(Unit){ int sz_ = v.size(); N = 1; while(N < sz_) N *= 2; node.assign(2*N, Unit); for(int i=0; i<sz_; i++) node[i+N-1] = v[i]; for(int i=N-2; i>=0; i--) node[i] = f(node[2*i+1], node[2*i+2]); } void update(int k, const Monoid &x) { k += N-1; node[k] = x; while(k > 0){ k = (k-1)/2; node[k] = f(node[2*k+1], node[2*k+2]); } } Monoid query(int a, int b, int k=0, int l = 0, int r=-1){ if(r < 0) r = N; if(r <= a || b <= l) return Unit; if(a <= l && r <= b) return node[k]; else{ Monoid vl = query(a, b, 2*k+1, l, (l+r)/2); Monoid vr = query(a, b, 2*k+2, (l+r)/2, r); return f(vl, vr); } } }; int f(auto& vp, int N){ vector<int> tmp(N, 0); SegmentTree<int> seg(tmp, [&](int a, int b){return max(a, b);}, 0); int res = 0; REP(i,vp.size()){ int idx = vp[i].second; int mx = min(seg.query(0, idx), seg.query(idx+1, N)); res = max(res, mx); seg.update(idx, mx+1); } return res; } int main() { cin.tie(0); ios::sync_with_stdio(false); cout << fixed << setprecision(15); int N; cin >> N; vector<int> a(N); REP(i,N) cin >> a[i]; vector<pair<int, int>> vp; REP(i,N) vp.push_back({a[i], i}); sort(all(vp)); int t1 = f(vp, N); reverse(all(vp)); int t2 = f(vp, N); cout << max(t1, t2) << endl; return 0; }