結果
| 問題 |
No.807 umg tours
|
| ユーザー |
chakku
|
| 提出日時 | 2020-03-04 15:41:14 |
| 言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 575 ms / 4,000 ms |
| コード長 | 3,197 bytes |
| コンパイル時間 | 1,844 ms |
| コンパイル使用メモリ | 186,512 KB |
| 実行使用メモリ | 24,616 KB |
| 最終ジャッジ日時 | 2024-11-23 19:52:03 |
| 合計ジャッジ時間 | 8,641 ms |
|
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| other | AC * 26 |
ソースコード
#include <bits/stdc++.h>
using namespace std;
/*{{{*/ //template
#define rep(i,n) for(int i=0;i<(int)(n);i++)
#define rrep(i,n) for(int i=(n)-1;i>=0;i--)
constexpr int INF = numeric_limits<int>::max()/2;
constexpr long long LINF = numeric_limits<long long>::max()/3;
#define pb push_back
#define eb emplace_back
#define fi first
#define se second
#define all(v) (v).begin(),(v).end()
#define sz(x) (int)(x).size()
#define debug(x) cerr<<#x<<":"<<x<<endl
#define debug2(x,y) cerr<<#x<<","<<#y":"<<x<<","<<y<<endl
//struct fin{ fin(){ cin.tie(0); ios::sync_with_stdio(false); } } fin_;
struct Double{ double d; explicit Double(double x) : d(x){} };
ostream& operator<<(ostream& os,const Double x){ os << fixed << setprecision(20) << x.d; return os; }
template<typename T> ostream& operator<<(ostream& os,const vector<T>& vec){ os << "["; for(const auto& v : vec){ os << v << ","; } os << "]"; return os; }
template<typename T,typename U> ostream& operator<<(ostream& os, const map<T,U>& mp){ os << "{"; for(auto& p : mp){ os << p << ","; } os << "}"; return os; }
template<typename T,typename U> ostream& operator<<(ostream& os,const pair<T,U>& p){ os << "(" << p.first << ","<< p.second <<")"; return os; }
template<typename T> ostream& operator<<(ostream& os,const set<T>& st){ os<<"{"; for(T v:st) os<<v<<","; os <<"}"; return os; }
template<typename T,typename U> inline void chmax(T &x,U y){ if(y>x) x = y; }
template<typename T,typename U> inline void chmin(T &x,U y){ if(y<x) x = y; }
using ll = long long;
using ull = unsigned long long;
using pii = std::pair<int,int>;
using vi = std::vector<int>;
typedef vector<vi> vvi;
ll gcd(ll a,ll b){ if(b==0) return a; else return gcd(b,a%b); }
constexpr ll TEN(int n) { return (n == 0) ? 1 : 10 * TEN(n - 1); }
//constexpr double eps = 1e-14;
constexpr double eps = 1e-10;
constexpr ll mod = 1e9+7;
const int dx[]={1,0,-1,0} ,dy[] = {0,1,0,-1};
/*}}}*/
struct edge{
int from,to;
ll cost;
edge(){}
edge(int f,int t,ll c) : from(f), to(t), cost(c){}
};
int main(){
int n,m; cin >> n >> m;
vector<vector<edge>> g(n);
rep(i,m){
int a,b,c;
cin >> a >> b >> c;
a--; b--;
g[a].emplace_back(a,b,c);
g[b].emplace_back(b,a,c);
}
using Vertex = tuple<int,int>;
using State = pair<ll,Vertex>;
priority_queue<State, vector<State>, greater<State>> que;
vector<vector<ll>> d(n, vector<ll>(2,LINF));
d[0][0] = 0;
d[0][1] = 0;
que.push(State(0,Vertex(0,0)));
que.push(State(0,Vertex(0,1)));
while(!que.empty()){
ll dist;
Vertex ver;
tie(dist,ver) = que.top();
que.pop();
int v,f; tie(v,f) = ver;
if(d[v][f] < dist) continue;
for(auto& e : g[v]){
int to = e.to;
// not ticket
if(d[to][f] > dist + e.cost){
d[to][f] = dist + e.cost;
que.push(State(d[to][f], Vertex(to,f)));
}
if(f == 0 && d[to][1] > dist){
d[to][1] = dist;
que.push(State(dist,Vertex(to,1)));
}
}
}
for(int i=0;i<n;i++){
cout << d[i][0] + d[i][1] << endl;
}
}
chakku