結果
| 問題 |
No.1690 Power Grid
|
| コンテスト | |
| ユーザー |
tanimani364
|
| 提出日時 | 2021-09-25 11:00:20 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 1,368 ms / 3,000 ms |
| コード長 | 3,106 bytes |
| コンパイル時間 | 2,669 ms |
| コンパイル使用メモリ | 200,180 KB |
| 最終ジャッジ日時 | 2025-01-24 18:05:56 |
|
ジャッジサーバーID (参考情報) |
judge1 / judge2 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 25 |
ソースコード
#include <bits/stdc++.h>
//#include<boost/multiprecision/cpp_int.hpp>
//#include<boost/multiprecision/cpp_dec_float.hpp>
// #include <atcoder/all>
using namespace std;
#define rep(i, a) for (int i = (int)0; i < (int)a; ++i)
#define repl(i, a) for (long long i = (long long)0; i < (long long)a; ++i)
#define rrep(i, a) for (int i = (int)a; i > -1; --i)
#define REP(i, a, b) for (int i = (int)a; i < (int)b; ++i)
#define REPL(i, a, b) for (long long i = (long long)a; i < (long long)b; ++i)
#define RREP(i, a, b) for (int i = (int)a; i > b; --i)
#define pb push_back
#define eb emplace_back
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define popcount __builtin_popcount
#define popcountll __builtin_popcountll
#define fi first
#define se second
using ll = long long;
constexpr ll mod = 1e9 + 7;
constexpr ll mod_998244353 = 998244353;
constexpr ll INF = 1LL << 60;
// #pragma GCC target("avx2")
// #pragma GCC optimize("O3")
// #pragma GCC optimize("unroll-loops")
//using lll=boost::multiprecision::cpp_int;
// using Double=boost::multiprecision::number<boost::multiprecision::cpp_dec_float<128>>;//仮数部が1024桁
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;
}
ll mypow(ll x, ll n, const ll &p = -1)
{ // x^nをmodで割った余り
if (p != -1)
{
x = (x % p + p) % p;
}
ll ret = 1;
while (n > 0)
{
if (n & 1)
{
if (p != -1)
ret = (ret * x) % p;
else
ret *= x;
}
if (p != -1)
x = (x * x) % p;
else
x *= x;
n >>= 1;
}
return ret;
}
struct myrand{
random_device seed;
mt19937 mt;
myrand():mt(seed()){}
int operator()(int a,int b){//[a,b)
uniform_int_distribution<int>dist(a,b-1);
return dist(mt);
}
};
// using namespace atcoder;
//------------------------
//------------------------
//------------------------
//------------------------
//------------------------
void solve()
{
int n,m,k;
cin>>n>>m>>k;
vector<int>a(n);
rep(i,n)cin>>a[i];
vector<vector<ll>>dist(n,vector<ll>(n,INF));
rep(i,n)dist[i][i]=0;
rep(i,m){
int x,y,z;
cin>>x>>y>>z;
x--;y--;
dist[x][y]=dist[y][x]=z;
}
rep(k,n){
rep(i,n){
rep(j,n){
chmin(dist[i][j],dist[i][k]+dist[k][j]);
}
}
}
vector<vector<ll>>dp(n+1,vector<ll>(1<<18,INF));
dp[0][0]=0;
rep(i,n){
rep(bit,1<<n){
if(dp[i][bit]==INF)continue;
chmin(dp[i+1][bit],dp[i][bit]);
rep(j,n){
if(bit&1<<j)continue;
ll res=!bit?0:INF;
rep(k,n){
if(bit&1<<k){
chmin(res,dist[j][k]);
}
}
chmin(dp[i+1][bit|1<<j],dp[i][bit]+res+a[j]);
}
}
}
ll ans=INF;
rep(bit,1<<n){
if(popcount(bit)==k){
chmin(ans,dp[n][bit]);
}
}
cout<<ans<<"\n";
}
int main()
{
ios::sync_with_stdio(false);
cin.tie(nullptr);
cout << fixed << setprecision(15);
solve();
return 0;
}
tanimani364