結果
問題 | No.807 umg tours |
ユーザー | Sumitacchan |
提出日時 | 2019-03-22 21:36:01 |
言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 502 ms / 4,000 ms |
コード長 | 3,205 bytes |
コンパイル時間 | 2,141 ms |
コンパイル使用メモリ | 181,772 KB |
実行使用メモリ | 42,208 KB |
最終ジャッジ日時 | 2024-11-23 18:51:42 |
合計ジャッジ時間 | 8,101 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
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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; struct fast_ios { fast_ios(){ cin.tie(0); ios::sync_with_stdio(false); cout << fixed << setprecision(20); }; } fast_ios_; #define FOR(i, begin, end) for(int i=(begin);i<(end);i++) #define REP(i, n) FOR(i,0,n) #define IFOR(i, begin, end) for(int i=(end)-1;i>=(begin);i--) #define IREP(i, n) IFOR(i,0,n) #define Sort(v) sort(v.begin(), v.end()) #define Reverse(v) reverse(v.begin(), v.end()) #define all(v) v.begin(),v.end() #define SZ(v) ((int)v.size()) #define Lower_bound(v, x) distance(v.begin(), lower_bound(v.begin(), v.end(), x)) #define Upper_bound(v, x) distance(v.begin(), upper_bound(v.begin(), v.end(), x)) #define Max(a, b) a = max(a, b) #define Min(a, b) a = min(a, b) #define bit(n) (1LL<<(n)) #define bit_exist(x, n) ((x >> n) & 1) #define Ans(f, y, n) if(f) cout << y << endl; else cout << n << endl; #define debug(x) cout << #x << "=" << x << endl; #define vdebug(v) cout << #v << "=" << endl; REP(i, v.size()){ cout << v[i] << ","; } cout << endl; #define mdebug(m) cout << #m << "=" << endl; REP(i, m.size()){ REP(j, m[i].size()){ cout << m[i][j] << ","; } cout << endl;} #define pb push_back #define f first #define s second #define int long long #define INF 1000000000000000000 using vec = vector<int>; using mat = vector<vec>; using Pii = pair<int, int>; using PiP = pair<int, Pii>; using PPi = pair<Pii, int>; using bools = vector<bool>; using pairs = vector<Pii>; template<typename T> void readv(vector<T> &a){ REP(i, a.size()) cin >> a[i]; } void readv_m1(vector<int> &a){ REP(i, a.size()){cin >> a[i]; a[i]--;} } //int dx[4] = {1,0,-1,0}; //int dy[4] = {0,1,0,-1}; int mod = 1000000007; //int mod = 998244353; #define Add(x, y) x = (x + (y)) % mod #define Mult(x, y) x = (x * (y)) % mod struct edge{int to, cost;}; class Graph { public: int N; vector<vector<edge>> G; Graph(int N): N(N){ G = vector<vector<edge>>(N, vector<edge>(0)); } void add_edge(int from, int to, int cost = 0){ G[from].push_back(edge({to, cost})); } void add_edge2(int v1, int v2, int cost = 0){ add_edge(v1, v2, cost); add_edge(v2, v1, cost); } vec dijkstra(int s, int t){ vec d(N); priority_queue<Pii, vector<Pii>, greater<Pii>> que; fill(d.begin(), d.end(), INF); d[s] = 0; que.push(Pii(0, s)); while(!que.empty()){ Pii p = que.top(); que.pop(); int v = p.second; if(v == t) return d; if(d[v] < p.first) continue; REP(i, G[v].size()){ edge e = G[v][i]; if(d[e.to] > d[v] + e.cost){ d[e.to] = d[v] + e.cost; que.push(Pii(d[e.to], e.to)); } } } return d; } }; signed main(){ int N, M; cin >> N >> M; Graph G(2 * N); int a, b, c; REP(i, M){ cin >> a >> b >> c; a--; b--; G.add_edge2(a, b, c); G.add_edge2(a + N, b + N, c); G.add_edge(a, b + N, 0); G.add_edge(b, a + N, 0); } vec d = G.dijkstra(0, -1); d[N] = 0; REP(i, N) cout << d[i] + d[i + N] << endl; return 0; }