結果
問題 | No.134 走れ!サブロー君 |
ユーザー |
![]() |
提出日時 | 2018-08-16 02:48:31 |
言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 20 ms / 5,000 ms |
コード長 | 2,278 bytes |
コンパイル時間 | 1,589 ms |
コンパイル使用メモリ | 176,200 KB |
実行使用メモリ | 7,552 KB |
最終ジャッジ日時 | 2024-09-24 09:43:50 |
合計ジャッジ時間 | 2,333 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
(要ログイン)
ファイルパターン | 結果 |
---|---|
other | AC * 15 |
ソースコード
#include "bits/stdc++.h"using namespace std;typedef long long ll;typedef pair<int, int> pii;typedef pair<ll, ll> pll;const int INF = 1e9;const ll LINF = 1e18;template<class S,class T> ostream& operator << (ostream& out,const pair<S,T>& o){ out << "(" << o.first << "," << o.second << ")"; return out; }template<class T> ostream& operator << (ostream& out,const vector<T> V){ for(int i = 0; i < V.size(); i++){ out << V[i]; if(i!=V.size()-1) out << " ";} return out; }template<class T> ostream& operator << (ostream& out,const vector<vector<T> > Mat){ for(int i = 0; i < Mat.size(); i++) { if(i != 0) out << endl; out<< Mat[i];} return out; }template<class S,class T> ostream& operator << (ostream& out,const map<S,T> mp){ out << "{ "; for(auto it = mp.begin(); it != mp.end(); it++){ out <<it->first << ":" << it->second; if(mp.size()-1 != distance(mp.begin(),it)) out << ", "; } out << " }"; return out; }/*<url:https://yukicoder.me/problems/no/134>問題文=============================================================================================================================解説=============================================================================================================================*/typedef long double ld;ld solve(){ld res = INF;ll x,y; cin >> x >> y;int N; cin >> N;vector<pll> ps(N+1);vector<ld> w(N+1);ps[0] = {x,y};ld W = 0;for(int i = 1; i <= N;i++){cin >> ps[i].first >> ps[i].second >> w[i];W += w[i];}N++;vector<vector<ld>> dp(1<<N,vector<ld>(N,INF));dp[0][0] = 0;for(int i = 0; i < (1<<N);i++){for(int j = 0; j < N;j++){if(dp[i][j]>=INF-10) continue;ld haveW = W;for(int k = 0; k < N;k++) if(!((i>>k)&1)) haveW -= w[k];for(int k = 0; k < N;k++){if((i>>k)&1) continue;dp[i|(1<<k)][k] = min(dp[i|(1<<k)][k],dp[i][j]+(abs(ps[j].first-ps[k].first)+abs(ps[j].second-ps[k].second))*(haveW+100)/120.+w[k]);}}}res = dp[(1<<N)-1][0];return res;}int main(void) {cin.tie(0); ios_base::sync_with_stdio(false);cout << fixed << setprecision(12) << solve() << endl;return 0;}