結果
問題 | No.417 チューリップバブル |
ユーザー | penguinshunya |
提出日時 | 2019-07-03 22:33:39 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 235 ms / 2,000 ms |
コード長 | 3,599 bytes |
コンパイル時間 | 2,295 ms |
コンパイル使用メモリ | 213,440 KB |
実行使用メモリ | 6,944 KB |
最終ジャッジ日時 | 2024-09-17 05:29:31 |
合計ジャッジ時間 | 6,321 ms |
ジャッジサーバーID (参考情報) |
judge5 / 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 | 2 ms
6,816 KB |
testcase_01 | AC | 2 ms
6,944 KB |
testcase_02 | AC | 2 ms
6,944 KB |
testcase_03 | AC | 2 ms
6,944 KB |
testcase_04 | AC | 2 ms
6,944 KB |
testcase_05 | AC | 2 ms
6,944 KB |
testcase_06 | AC | 2 ms
6,944 KB |
testcase_07 | AC | 2 ms
6,940 KB |
testcase_08 | AC | 5 ms
6,944 KB |
testcase_09 | AC | 9 ms
6,944 KB |
testcase_10 | AC | 12 ms
6,944 KB |
testcase_11 | AC | 39 ms
6,940 KB |
testcase_12 | AC | 38 ms
6,940 KB |
testcase_13 | AC | 17 ms
6,940 KB |
testcase_14 | AC | 60 ms
6,944 KB |
testcase_15 | AC | 6 ms
6,940 KB |
testcase_16 | AC | 6 ms
6,940 KB |
testcase_17 | AC | 32 ms
6,944 KB |
testcase_18 | AC | 32 ms
6,944 KB |
testcase_19 | AC | 34 ms
6,940 KB |
testcase_20 | AC | 119 ms
6,944 KB |
testcase_21 | AC | 118 ms
6,944 KB |
testcase_22 | AC | 118 ms
6,940 KB |
testcase_23 | AC | 117 ms
6,944 KB |
testcase_24 | AC | 2 ms
6,940 KB |
testcase_25 | AC | 120 ms
6,944 KB |
testcase_26 | AC | 13 ms
6,944 KB |
testcase_27 | AC | 84 ms
6,940 KB |
testcase_28 | AC | 118 ms
6,940 KB |
testcase_29 | AC | 121 ms
6,940 KB |
testcase_30 | AC | 118 ms
6,940 KB |
testcase_31 | AC | 119 ms
6,940 KB |
testcase_32 | AC | 3 ms
6,940 KB |
testcase_33 | AC | 6 ms
6,940 KB |
testcase_34 | AC | 59 ms
6,944 KB |
testcase_35 | AC | 234 ms
6,944 KB |
testcase_36 | AC | 235 ms
6,944 KB |
testcase_37 | AC | 235 ms
6,944 KB |
testcase_38 | AC | 233 ms
6,940 KB |
testcase_39 | AC | 233 ms
6,944 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 reps(i, n) for (int i = 1; i <= int(n); i++) #define rreps(i, n) for (int i = int(n); i >= 1; i--) #define repc(i, n) for (int i = 0; i <= int(n); i++) #define rrepc(i, n) for (int i = int(n); i >= 0; i--) #define repi(i, a, b) for (int i = int(a); i < int(b); i++) #define repic(i, a, b) for (int i = int(a); i <= int(b); i++) #define each(x, y) for (auto &x : y) #define all(a) (a).begin(), (a).end() #define bit(b) (1ll << (b)) using namespace std; using i32 = int; using i64 = long long; using u64 = unsigned long long; using f80 = long double; using vi32 = vector<i32>; using vi64 = vector<i64>; using vu64 = vector<u64>; using vf80 = vector<f80>; using vstr = vector<string>; inline void yes() { cout << "Yes" << '\n'; exit(0); } inline void no() { cout << "No" << '\n'; exit(0); } inline i64 gcd(i64 a, i64 b) { if (min(a, b) == 0) return max(a, b); if (a % b == 0) return b; return gcd(b, a % b); } inline i64 lcm(i64 a, i64 b) { return a / gcd(a, b) * b; } inline u64 xorshift() { static u64 x = 88172645463325252ull; x = x ^ (x << 7); return x = x ^ (x >> 9); } void solve(); int main() { ios::sync_with_stdio(0); cin.tie(0); cout << fixed << setprecision(16); solve(); return 0; } template <typename T> class pqasc : public priority_queue<T, vector<T>, greater<T>> {}; template <typename T> class pqdesc : public priority_queue<T, vector<T>, less<T>> {}; template <typename T> inline void amax(T &x, T y) { if (x < y) x = y; } template <typename T> inline void amin(T &x, T y) { if (x > y) x = y; } template <typename T> inline T power(T x, i64 n, T e = 1) { T r = e; while (n > 0) { if (n & 1) r *= x; x *= x; n >>= 1; } return r; } template <typename T> istream& operator>>(istream &is, vector<T> &v) { each(x, v) is >> x; return is; } template <typename T> ostream& operator<<(ostream &os, vector<T> &v) { rep(i, v.size()) { if (i) os << ' '; os << v[i]; } return os; } template <typename T, typename S> istream& operator>>(istream &is, pair<T, S> &p) { is >> p.first >> p.second; return is; } template <typename T, typename S> ostream& operator<<(ostream &os, pair<T, S> &p) { os << p.first << ' ' << p.second; return os; } template <typename T> struct WeightedGraph { struct Edge { int to; T cost; }; vector<vector<Edge>> edges; int n; WeightedGraph(int n) : n(n) { edges = vector<vector<Edge>>(n); } void add_edge(int from, int to, T cost = 0) { edges[from].push_back((Edge) { to, cost }); } vector<Edge>& operator[](int x) { return edges[x]; } }; void solve() { int N, M; cin >> N >> M; M /= 2; vi64 money(N); cin >> money; auto graph = WeightedGraph<i64>(N); rep(i, N - 1) { i64 a, b, c; cin >> a >> b >> c; graph.add_edge(a, b, c); graph.add_edge(b, a, c); } vector<vi64> dp(N, vi64(M + 1, -1e18)); function<void(int v, int p)> dfs = [&](int v, int p) { dp[v][0] = 0; each(e, graph[v]) { if (e.to == p) continue; dfs(e.to, v); // lift rrepc(i, M) { if (dp[e.to][i] < 0) continue; if (i + e.cost <= M) { dp[e.to][i + e.cost] = dp[e.to][i] + money[e.to]; } dp[e.to][i] = -1e18; } // merge rrepc(i, M) rrepc(j, M) { if (dp[v][i] < 0 || dp[e.to][j] < 0) continue; if (i + j > M) continue; amax(dp[v][i + j], dp[v][i] + dp[e.to][j]); } } }; dfs(0, -1); i64 ans = 0; repc(i, M) amax(ans, dp[0][i] + money[0]); cout << ans << '\n'; }