結果
問題 | No.704 ゴミ拾い Medium |
ユーザー | gyouzasushi |
提出日時 | 2022-05-25 10:28:16 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 369 ms / 1,500 ms |
コード長 | 4,489 bytes |
コンパイル時間 | 2,307 ms |
コンパイル使用メモリ | 210,256 KB |
実行使用メモリ | 21,888 KB |
最終ジャッジ日時 | 2024-09-20 14:42:59 |
合計ジャッジ時間 | 11,057 ms |
ジャッジサーバーID (参考情報) |
judge4 / 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 | 1 ms
5,248 KB |
testcase_01 | AC | 2 ms
5,376 KB |
testcase_02 | AC | 1 ms
5,376 KB |
testcase_03 | AC | 1 ms
5,376 KB |
testcase_04 | AC | 1 ms
5,376 KB |
testcase_05 | AC | 2 ms
5,376 KB |
testcase_06 | AC | 2 ms
5,376 KB |
testcase_07 | AC | 1 ms
5,376 KB |
testcase_08 | AC | 1 ms
5,376 KB |
testcase_09 | AC | 1 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 | 1 ms
5,376 KB |
testcase_14 | AC | 4 ms
5,376 KB |
testcase_15 | AC | 4 ms
5,376 KB |
testcase_16 | AC | 3 ms
5,376 KB |
testcase_17 | AC | 3 ms
5,376 KB |
testcase_18 | AC | 3 ms
5,376 KB |
testcase_19 | AC | 3 ms
5,376 KB |
testcase_20 | AC | 3 ms
5,376 KB |
testcase_21 | AC | 4 ms
5,376 KB |
testcase_22 | AC | 4 ms
5,376 KB |
testcase_23 | AC | 3 ms
5,376 KB |
testcase_24 | AC | 357 ms
21,760 KB |
testcase_25 | AC | 355 ms
21,888 KB |
testcase_26 | AC | 354 ms
21,888 KB |
testcase_27 | AC | 356 ms
21,888 KB |
testcase_28 | AC | 350 ms
21,888 KB |
testcase_29 | AC | 362 ms
21,888 KB |
testcase_30 | AC | 347 ms
21,760 KB |
testcase_31 | AC | 353 ms
21,888 KB |
testcase_32 | AC | 347 ms
21,868 KB |
testcase_33 | AC | 346 ms
21,884 KB |
testcase_34 | AC | 250 ms
12,588 KB |
testcase_35 | AC | 249 ms
12,544 KB |
testcase_36 | AC | 253 ms
12,544 KB |
testcase_37 | AC | 251 ms
12,536 KB |
testcase_38 | AC | 248 ms
12,596 KB |
testcase_39 | AC | 256 ms
12,544 KB |
testcase_40 | AC | 251 ms
12,560 KB |
testcase_41 | AC | 247 ms
12,672 KB |
testcase_42 | AC | 249 ms
12,672 KB |
testcase_43 | AC | 257 ms
12,544 KB |
testcase_44 | AC | 2 ms
5,376 KB |
testcase_45 | AC | 2 ms
5,376 KB |
testcase_46 | AC | 369 ms
12,672 KB |
testcase_47 | AC | 359 ms
12,532 KB |
ソースコード
#include <bits/stdc++.h> #define rep(i, n) for (int i = 0; i < (int)(n); i++) #define rrep(i, n) for (int i = (int)(n - 1); i >= 0; i--) #define all(x) (x).begin(), (x).end() #define sz(x) int(x.size()) using namespace std; using ll = long long; const int INF = 1e9; const ll LINF = 1e18; 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 (b < a) { a = b; return 1; } return 0; } template <class T> vector<T> make_vec(size_t a) { return vector<T>(a); } template <class T, class... Ts> auto make_vec(size_t a, Ts... ts) { return vector<decltype(make_vec<T>(ts...))>(a, make_vec<T>(ts...)); } template <typename T> istream& operator>>(istream& is, vector<T>& v) { for (int i = 0; i < int(v.size()); i++) { is >> v[i]; } return is; } template <typename T> ostream& operator<<(ostream& os, const vector<T>& v) { for (int i = 0; i < int(v.size()); i++) { os << v[i]; if (i < int(v.size()) - 1) os << ' '; } return os; } // DynamicLiChaoTree<ll> LCT(ll min_index,ll max_index); などする // xの動きうる最大範囲が[min_index,max_index) // void add_line(T a,T b): 直線 ax+b を追加 // void add_segment_line(T Llim,T Rlim,T a,T b): [Llim,Rlim]の線分 ax+b を追加 // T get(T x): min(ax+b) を返す template <typename T> struct DynamicLiChaoTree { private: struct Line { T slope, intercept; Line() : slope(0), intercept(numeric_limits<T>::max()) { } Line(T a, T b) : slope(a), intercept(b) { } T f(T x) { return slope * x + intercept; } }; struct node { Line line; node *left, *right; node(Line line) : line(line), left(nullptr), right(nullptr) { } }; const long long min_index, max_index; node* root; node* add_line(node*& t, long long l, long long r, Line line) const { if (l == r) return nullptr; if (!t) { t = new node(line); return t; } long long m = (l + r) >> 1; bool L = (line.f(l) <= t->line.f(l)); bool M = (line.f(m) <= t->line.f(m)); bool R = (line.f(r) <= t->line.f(r)); if (L && R) { t->line = line; return t; } if (!L && !R) { return t; } if (M) { swap(t->line, line); } if (L != M) { t->left = add_line(t->left, l, m, line); } else { t->right = add_line(t->right, m + 1, r, line); } return t; } node* add_segment_line(node*& t, long long Llim, long long Rlim, long long l, long long r, Line line) { if (r <= Llim || Rlim <= l) return t; if (Llim <= l && r <= Rlim) return add_line(t, l, r, line); if (t == nullptr) t = new node(Line()); long long m = (l + r) >> 1; t->left = add_segment_line(t->left, Llim, Rlim, l, m, line); t->right = add_segment_line(t->right, Llim, Rlim, m, r, line); return t; } public: DynamicLiChaoTree(T min_index, T max_index) : min_index(min_index), max_index(max_index), root(nullptr) { } void add_line(T a, T b) { Line line = Line{a, b}; add_line(root, min_index, max_index, line); } void add_segment_line(T Llim, T Rlim, T a, T b) { Line line = Line{a, b}; add_segment_line(root, Llim, Rlim, min_index, max_index, line); } T get(long long x) { node* t = root; long long l = min_index, r = max_index; T ret = numeric_limits<T>::max(); while (r - l > 0 && t != nullptr) { long long m = (l + r) >> 1; ret = min(ret, t->line.f(x)); if (x < m) { r = m; t = t->left; } else { l = m; t = t->right; } } return ret; } }; int main() { int n; cin >> n; vector<ll> a(n), x(n), y(n); cin >> a >> x >> y; vector<ll> dp(n + 1, LINF); dp[0] = 0; DynamicLiChaoTree<ll> lct(0, 100100); rep(i, n) { lct.add_segment_line(-1, x[i], -1, dp[i] + x[i] + y[i]); lct.add_segment_line(x[i], 100100, 1, dp[i] - x[i] + y[i]); dp[i + 1] = lct.get(a[i]); } cout << dp[n] << '\n'; }