結果
問題 | No.2009 Drunkers' Contest |
ユーザー | fuppy_kyopro |
提出日時 | 2022-07-15 23:15:13 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 1,548 ms / 2,000 ms |
コード長 | 7,443 bytes |
コンパイル時間 | 2,665 ms |
コンパイル使用メモリ | 219,600 KB |
実行使用メモリ | 18,816 KB |
最終ジャッジ日時 | 2024-06-27 20:37:38 |
合計ジャッジ時間 | 39,692 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 | 2 ms
5,248 KB |
testcase_01 | AC | 2 ms
5,376 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 2 ms
5,376 KB |
testcase_04 | AC | 2 ms
5,376 KB |
testcase_05 | AC | 2 ms
5,376 KB |
testcase_06 | AC | 2 ms
5,376 KB |
testcase_07 | AC | 2 ms
5,376 KB |
testcase_08 | AC | 2 ms
5,376 KB |
testcase_09 | AC | 2 ms
5,376 KB |
testcase_10 | AC | 2 ms
5,376 KB |
testcase_11 | AC | 2 ms
5,376 KB |
testcase_12 | AC | 2 ms
5,376 KB |
testcase_13 | AC | 2 ms
5,376 KB |
testcase_14 | AC | 13 ms
5,376 KB |
testcase_15 | AC | 14 ms
5,376 KB |
testcase_16 | AC | 17 ms
5,376 KB |
testcase_17 | AC | 21 ms
5,376 KB |
testcase_18 | AC | 25 ms
5,376 KB |
testcase_19 | AC | 25 ms
5,376 KB |
testcase_20 | AC | 26 ms
5,376 KB |
testcase_21 | AC | 29 ms
5,376 KB |
testcase_22 | AC | 30 ms
5,376 KB |
testcase_23 | AC | 30 ms
5,376 KB |
testcase_24 | AC | 1,532 ms
18,816 KB |
testcase_25 | AC | 1,521 ms
18,688 KB |
testcase_26 | AC | 1,528 ms
18,688 KB |
testcase_27 | AC | 1,548 ms
18,688 KB |
testcase_28 | AC | 1,525 ms
18,816 KB |
testcase_29 | AC | 1,533 ms
18,688 KB |
testcase_30 | AC | 1,530 ms
18,816 KB |
testcase_31 | AC | 1,526 ms
18,816 KB |
testcase_32 | AC | 1,523 ms
18,816 KB |
testcase_33 | AC | 1,529 ms
18,816 KB |
testcase_34 | AC | 1,524 ms
18,688 KB |
testcase_35 | AC | 1,526 ms
18,688 KB |
testcase_36 | AC | 1,525 ms
18,688 KB |
testcase_37 | AC | 1,514 ms
18,688 KB |
testcase_38 | AC | 1,521 ms
18,560 KB |
testcase_39 | AC | 1,508 ms
18,688 KB |
testcase_40 | AC | 1,517 ms
18,816 KB |
testcase_41 | AC | 1,537 ms
18,688 KB |
testcase_42 | AC | 1,522 ms
18,560 KB |
testcase_43 | AC | 1,528 ms
18,560 KB |
testcase_44 | AC | 114 ms
18,816 KB |
testcase_45 | AC | 115 ms
18,688 KB |
testcase_46 | AC | 102 ms
18,688 KB |
testcase_47 | AC | 96 ms
18,816 KB |
testcase_48 | AC | 95 ms
18,688 KB |
testcase_49 | AC | 96 ms
18,816 KB |
testcase_50 | AC | 347 ms
18,808 KB |
testcase_51 | AC | 96 ms
18,688 KB |
testcase_52 | AC | 96 ms
18,816 KB |
testcase_53 | AC | 1,164 ms
18,688 KB |
testcase_54 | AC | 810 ms
18,688 KB |
testcase_55 | AC | 221 ms
18,688 KB |
testcase_56 | AC | 126 ms
18,688 KB |
testcase_57 | AC | 104 ms
18,688 KB |
ソースコード
/* #pragma GCC target("avx2") #pragma GCC optimize("O3") #pragma GCC optimize("unroll-loops") //*/ #include <bits/stdc++.h> // #include <atcoder/all> using namespace std; // using namespace atcoder; // #define _GLIBCXX_DEBUG #define DEBUG(x) cerr << #x << ": " << x << endl; #define DEBUG_VEC(v) \ cerr << #v << ":"; \ for (int iiiiiiii = 0; iiiiiiii < v.size(); iiiiiiii++) \ cerr << " " << v[iiiiiiii]; \ cerr << endl; #define DEBUG_MAT(v) \ cerr << #v << endl; \ for (int iv = 0; iv < v.size(); iv++) { \ for (int jv = 0; jv < v[iv].size(); jv++) { \ cerr << v[iv][jv] << " "; \ } \ cerr << endl; \ } typedef long long ll; // #define int ll #define vi vector<int> #define vl vector<ll> #define vii vector<vector<int>> #define vll vector<vector<ll>> #define vs vector<string> #define pii pair<int, int> #define pis pair<int, string> #define psi pair<string, int> #define pll pair<ll, ll> template <class S, class T> pair<S, T> operator+(const pair<S, T> &s, const pair<S, T> &t) { return pair<S, T>(s.first + t.first, s.second + t.second); } template <class S, class T> pair<S, T> operator-(const pair<S, T> &s, const pair<S, T> &t) { return pair<S, T>(s.first - t.first, s.second - t.second); } template <class S, class T> ostream &operator<<(ostream &os, pair<S, T> p) { os << "(" << p.first << ", " << p.second << ")"; return os; } #define X first #define Y second #define rep(i, n) for (int i = 0; i < (int)(n); i++) #define rep1(i, n) for (int i = 1; i <= (int)(n); i++) #define rrep(i, n) for (int i = (int)(n)-1; i >= 0; i--) #define rrep1(i, n) for (int i = (int)(n); i > 0; i--) #define REP(i, a, b) for (int i = a; i < b; i++) #define in(x, a, b) (a <= x && x < b) #define all(c) c.begin(), c.end() void YES(bool t = true) { cout << (t ? "YES" : "NO") << endl; } void Yes(bool t = true) { cout << (t ? "Yes" : "No") << endl; } void yes(bool t = true) { cout << (t ? "yes" : "no") << endl; } void NO(bool t = true) { cout << (t ? "NO" : "YES") << endl; } void No(bool t = true) { cout << (t ? "No" : "Yes") << endl; } void no(bool t = true) { cout << (t ? "no" : "yes") << endl; } 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; } #define UNIQUE(v) v.erase(std::unique(v.begin(), v.end()), v.end()); const ll inf = 1000000001; const ll INF = (ll)1e18 + 1; const long double pi = 3.1415926535897932384626433832795028841971L; int popcount(ll t) { return __builtin_popcountll(t); } // int dx[4] = {1, 0, -1, 0}, dy[4] = {0, 1, 0, -1}; // int dx2[8] = { 1,1,0,-1,-1,-1,0,1 }, dy2[8] = { 0,1,1,1,0,-1,-1,-1 }; vi dx = {0, 0, -1, 1}, dy = {-1, 1, 0, 0}; vi dx2 = {1, 1, 0, -1, -1, -1, 0, 1}, dy2 = {0, 1, 1, 1, 0, -1, -1, -1}; struct Setup_io { Setup_io() { ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0); cout << fixed << setprecision(25); } } setup_io; const ll MOD = 1000000007; // const ll MOD = 998244353; // #define mp make_pair //#define endl '\n' template <typename T> class SegmentTree { public: using F = function<T(T &, T &)>; int n; vector<T> dat; T e; F query_func; F update_func; SegmentTree(vector<T> a, F query_func, F update_func, T e) : n(a.size()), query_func(query_func), update_func(update_func), e(e) { if (n == 0) { a.push_back(e); n++; } dat.resize(4 * n); init(0, 0, n, a); } void init(int k, int l, int r, vector<T> &a) { if (r - l == 1) { dat[k] = a[l]; } else { int lch = 2 * k + 1, rch = 2 * k + 2; init(lch, l, (l + r) / 2, a); init(rch, (l + r) / 2, r, a); dat[k] = query_func(dat[lch], dat[rch]); } } void update(int k, T a, int v, int l, int r) { if (r - l == 1) { dat[v] = update_func(dat[v], a); } else { if (k < (l + r) / 2) update(k, a, 2 * v + 1, l, (l + r) / 2); else { update(k, a, 2 * v + 2, (l + r) / 2, r); } dat[v] = query_func(dat[v * 2 + 1], dat[v * 2 + 2]); } } void update(int k, T a) { update(k, a, 0, 0, n); } T query(int a, int b, int k, int l, int r) { if (r <= a || b <= l) { return e; } if (a <= l && r <= b) { return dat[k]; } else { T ul = query(a, b, k * 2 + 1, l, (l + r) / 2); T ur = query(a, b, k * 2 + 2, (l + r) / 2, r); return query_func(ul, ur); } } T query(int a, int b) { return query(a, b, 0, 0, n); } int find(int a, int b, int k, int l, int r, double x) { if (dat[k] < x || r <= a || b <= l) return -1; if (l + 1 == r) { if (dat[k] >= x) return l; else return -1; } int rv = find(a, b, 2 * k + 1, l, (l + r) / 2, x); if (rv != -1) return rv; return find(a, b, 2 * k + 2, (l + r) / 2, r, x); } }; double mi(double a, double b) { return max(a, b); } double g(double a, double b) { return b; } signed main() { int n; cin >> n; vl a(n), b(n); rep(i, n) { cin >> a[i]; } rep(i, n) { cin >> b[i]; } vl suma(n + 1), sumb(n + 1); rep(i, n) { suma[i + 1] = suma[i] + a[i]; sumb[i + 1] = sumb[i] + b[i]; } vector<double> dp(n + 1); SegmentTree<double> dpx(vector<double>(n + 1), mi, g, -inf); dpx.update(n, inf); dp[n] = 0; rrep(i, n) { double temp_x = sqrt((double)a[i] / b[i]); if (i == 0) { chmax(temp_x, 1.0); } // DEBUG(temp_x); double nval = dpx.query(i + 1, i + 2); if (temp_x <= nval) { dpx.update(i, temp_x); dp[i] = dp[i + 1] + a[i] / temp_x + b[i] * temp_x; continue; } double low = nval, high = temp_x; if (i == 0) { chmax(low, 1.0); } auto f = [&](double x) { int ok = dpx.find(i + 1, n + 1, 0, 0, n + 1, x); // int ng = i, ok = n; // while (ng + 1 < ok) { // int mid = (ng + ok) / 2; // if (dpx.query(i + 1, mid + 1) >= x) { // ok = mid; // } else { // ng = mid; // } // } double res = (suma[ok] - suma[i]) / x + (sumb[ok] - sumb[i]) * x; res += dp[ok]; return res; }; rep(_, 70) { double x1 = (2 * low + high) / 3, x2 = (low + 2 * high) / 3; if (f(x1) >= f(x2)) { low = x1; } else { high = x2; } } // DEBUG(low); // DEBUG(f(low)); dpx.update(i, low); dp[i] = f(low); } // DEBUG_VEC(dp); // DEBUG(dpx[0]); cout << dp[0] << endl; }