結果
| 問題 |
No.417 チューリップバブル
|
| コンテスト | |
| ユーザー |
Ogtsn99
|
| 提出日時 | 2020-07-15 22:03:27 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 4,691 bytes |
| コンパイル時間 | 2,343 ms |
| コンパイル使用メモリ | 207,868 KB |
| 最終ジャッジ日時 | 2025-01-11 21:17:04 |
|
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
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| ファイルパターン | 結果 |
|---|---|
| other | AC * 15 WA * 18 TLE * 7 |
ソースコード
#include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for(int (i)=0;(i)<(n);(i)++)
#define rrep(i,n) for(int (i)=((n)-1);(i)>=0;(i)--)
#define itn int
#define miele(v) min_element(v.begin(), v.end())
#define maele(v) max_element(v.begin(), v.end())
#define SUM(v) accumulate(v.begin(), v.end(), 0LL)
#define lb(a, key) lower_bound(a.begin(),a.end(),key)
#define ub(a, key) upper_bound(a.begin(),a.end(),key)
#define COUNT(a, key) count(a.begin(), a.end(), key)
#define BITCOUNT(x) __builtin_popcount(x)
#define pb push_back
#define all(x) (x).begin(),(x).end()
#define F first
#define S second
using P = pair <int,int>;
using WeightedGraph = vector<vector <P>>;
using UnWeightedGraph = vector<vector<int>>;
using Real = long double;
using Point = complex<Real>; //Point and Vector2d is the same!
using Vector2d = complex<Real>;
const long long INF = 1LL << 60;
const int MOD = 1000000007;
const double EPS = 1e-15;
const double PI=3.14159265358979323846;
template <typename T>
int getIndexOfLowerBound(vector <T> &v, T x){
return lower_bound(v.begin(),v.end(),x)-v.begin();
}
template <typename T>
int getIndexOfUpperBound(vector <T> &v, T x){
return upper_bound(v.begin(),v.end(),x)-v.begin();
}
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return true; } return false; }
template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return true; } return false; }
#define DUMPOUT cerr
#define repi(itr, ds) for (auto itr = ds.begin(); itr != ds.end(); itr++)
istream &operator>>(istream &is, Point &p) {
Real a, b; is >> a >> b; p = Point(a, b); return is;
}
template <typename T, typename U>
istream &operator>>(istream &is, pair<T,U> &p_var) {
is >> p_var.first >> p_var.second;
return is;
}
template <typename T>
istream &operator>>(istream &is, vector<T> &vec) {
for (T &x : vec) is >> x;
return is;
}
template <typename T, typename U>
ostream &operator<<(ostream &os, pair<T, U> &pair_var) {
DUMPOUT<<'{';
os << pair_var.first;
DUMPOUT<<',';
os << " "<< pair_var.second;
DUMPOUT<<'}';
return os;
}
template <typename T>
ostream &operator<<(ostream &os, vector<T> &vec) {
DUMPOUT<<'[';
for (int i = 0; i < vec.size(); i++)
os << vec[i] << (i + 1 == vec.size() ? "" : " ");
DUMPOUT<<']';
return os;
}
template <typename T>
ostream &operator<<(ostream &os, vector<vector<T>> &df) {
for (auto& vec : df) os<<vec;
return os;
}
template <typename T, typename U>
ostream &operator<<(ostream &os, map<T, U> &map_var) {
DUMPOUT << "{";
repi(itr, map_var) {
os << *itr;
itr++;
if (itr != map_var.end()) DUMPOUT << ", ";
itr--;
}
DUMPOUT << "}";
return os;
}
template <typename T>
ostream &operator<<(ostream &os, set<T> &set_var) {
DUMPOUT << "{";
repi(itr, set_var) {
os << *itr;
itr++;
if (itr != set_var.end()) DUMPOUT << ", ";
itr--;
}
DUMPOUT << "}";
return os;
}
void print() {cout << endl;}
template <class Head, class... Tail>
void print(Head&& head, Tail&&... tail) {
cout << head;
if (sizeof...(tail) != 0) cout << " ";
print(forward<Tail>(tail)...);
}
void dump_func() {DUMPOUT << '#'<<endl;}
template <typename Head, typename... Tail>
void dump_func(Head &&head, Tail &&... tail) {
DUMPOUT << head;
if (sizeof...(Tail) > 0) DUMPOUT << ", ";
dump_func(std::move(tail)...);
}
#ifdef DEBUG_
#define DEB
#define dump(...) \
DUMPOUT << " " << string(#__VA_ARGS__) << ": " \
<< "[" << to_string(__LINE__) << ":" << __FUNCTION__ << "]" \
<< endl \
<< " ", \
dump_func(__VA_ARGS__)
#else
#define DEB if (false)
#define dump(...)
#endif
WeightedGraph g;
vector <int> money;
vector <vector<int>> dp(202,vector <int>(2020));
void dfs(int now, int time, int c, vector <bool> used){
if(time > 2019) return ;
if(!used[now]) c += money[now], used[now] = true;
if(!chmax(dp[now][time], c)) return ;
else {
for(auto e: g[now]){
dfs(e.F, time + e.S, c, used);
}
}
}
int main(void) { cin.tie(0); ios::sync_with_stdio(false);
int n, m; cin>>n>>m;
money.resize(n);
cin>>money;
g.resize(n);
rep(i, n-1){
int a, b, c; cin>>a>>b>>c;
g[a].pb({b, c});
g[b].pb({a, c});
}
vector <bool> used(202);
dfs(0, 0, 0, used);
int ans = 0;
for(int i=0;i<=m;i++) chmax(ans, dp[0][i]);
print(ans);
}
Ogtsn99