結果
| 問題 |
No.357 品物の並び替え (Middle)
|
| コンテスト | |
| ユーザー |
kei
|
| 提出日時 | 2018-11-05 23:30:57 |
| 言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 7 ms / 5,000 ms |
| コード長 | 2,103 bytes |
| コンパイル時間 | 1,641 ms |
| コンパイル使用メモリ | 172,076 KB |
| 実行使用メモリ | 6,820 KB |
| 最終ジャッジ日時 | 2024-11-20 20:20:55 |
| 合計ジャッジ時間 | 2,536 ms |
|
ジャッジサーバーID (参考情報) |
judge4 / judge5 |
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| ファイルパターン | 結果 |
|---|---|
| other | AC * 18 |
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;
inline ll gcd(ll a, ll b) { return b ? gcd(b, a%b) : a; }
inline ll lcm(ll a, ll b) { return a / gcd(a, b)*b; }
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/357>
問題文============================================================
=================================================================
解説=============================================================
================================================================
*/
ll solve(){
ll res = 0;
ll N,M; cin >> N >> M;
vector<vector<ll>> scores(N,vector<ll>(N));
for(int i = 0; i < M;i++){
ll u,v,score; cin >> u >> v >> score;
scores[u][v] = score;
}
vector<ll> dp(1<<N);
for(int b = 0; b < (1<<N); b++){
for(int i = 0; i < N;i++){
if((b>>i)&1) continue;
ll add = 0;
for(int j = 0; j < N;j++){
if((b>>j)&1){
add += scores[j][i];
}
}
dp[b | (1<<i)] = max(dp[b | (1<<i)],dp[b] + add);
}
}
res = dp[(1<<N)-1];
return res;
}
int main(void) {
cin.tie(0); ios_base::sync_with_stdio(false);
cout << solve() << endl;
return 0;
}
kei