結果
問題 | No.1812 Uribo Road |
ユーザー | eQe |
提出日時 | 2022-01-15 16:36:17 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 209 ms / 5,000 ms |
コード長 | 5,474 bytes |
コンパイル時間 | 5,367 ms |
コンパイル使用メモリ | 296,056 KB |
実行使用メモリ | 11,144 KB |
最終ジャッジ日時 | 2024-11-21 18:49:12 |
合計ジャッジ時間 | 7,825 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge5 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 2 ms
6,816 KB |
testcase_01 | AC | 2 ms
6,816 KB |
testcase_02 | AC | 2 ms
6,820 KB |
testcase_03 | AC | 12 ms
6,820 KB |
testcase_04 | AC | 2 ms
6,820 KB |
testcase_05 | AC | 2 ms
6,816 KB |
testcase_06 | AC | 1 ms
6,820 KB |
testcase_07 | AC | 3 ms
6,816 KB |
testcase_08 | AC | 5 ms
6,816 KB |
testcase_09 | AC | 7 ms
6,816 KB |
testcase_10 | AC | 4 ms
6,816 KB |
testcase_11 | AC | 5 ms
6,816 KB |
testcase_12 | AC | 95 ms
10,656 KB |
testcase_13 | AC | 56 ms
10,648 KB |
testcase_14 | AC | 59 ms
10,520 KB |
testcase_15 | AC | 58 ms
6,820 KB |
testcase_16 | AC | 60 ms
7,296 KB |
testcase_17 | AC | 172 ms
8,872 KB |
testcase_18 | AC | 27 ms
7,168 KB |
testcase_19 | AC | 200 ms
11,144 KB |
testcase_20 | AC | 209 ms
11,016 KB |
testcase_21 | AC | 171 ms
11,020 KB |
testcase_22 | AC | 138 ms
11,016 KB |
testcase_23 | AC | 6 ms
6,820 KB |
testcase_24 | AC | 2 ms
6,816 KB |
testcase_25 | AC | 16 ms
6,820 KB |
testcase_26 | AC | 4 ms
6,816 KB |
testcase_27 | AC | 20 ms
6,816 KB |
testcase_28 | AC | 39 ms
6,816 KB |
testcase_29 | AC | 2 ms
6,816 KB |
testcase_30 | AC | 5 ms
6,820 KB |
testcase_31 | AC | 106 ms
8,448 KB |
testcase_32 | AC | 3 ms
6,820 KB |
testcase_33 | AC | 69 ms
8,448 KB |
ソースコード
#include <atcoder/all> using namespace atcoder; #include <bits/stdc++.h> #define all(a) (a.begin()),(a.end()) #define rall(a) (a.rbegin()),(a.rend()) using namespace std; using ll=long long; using ld=long double; using pll=pair<ll,ll>; template<class T>bool chmax(T &a, const T &b) {if(a<b) {a=b; return 1;} return 0;} template<class T>bool chmin(T &a, const T &b) {if(b<a) {a=b; return 1;} return 0;} istream& operator >> (istream& is, modint1000000007& x) { unsigned int t; is >> t; x=t; return is; } istream& operator >> (istream& is, modint998244353& x) { unsigned int t; is >> t; x=t; return is; } istream& operator >> (istream& is, modint& x) { unsigned int t; is >> t; x=t; return is; } ostream& operator << (ostream& os, const modint1000000007& x) { os << x.val(); return os; } ostream& operator << (ostream& os, const modint998244353& x) { os << x.val(); return os; } ostream& operator << (ostream& os, const modint& x) { os << x.val(); return os; } template<class T1, class T2>istream& operator >> (istream& is, pair<T1,T2>& p) { is >> p.first >> p.second; return is; } template<class T1, class T2>ostream& operator << (ostream& os, const pair<T1,T2>& p) { os << p.first << " " << p.second; return os;} template<class T>istream& operator >> (istream& is, vector<T>& v) { for(T& x:v) is >> x; return is; } template<class T>ostream& operator << (ostream& os, const vector<T>& v) {for(int i=0;i<(int)v.size();i++) {os << v[i] << (i+1 == v.size() ? "":" ");} return os;} template<class... A> void pt() { std::cout << "\n"; } template<class... A> void pt_rest() { std::cout << "\n"; } template<class T, class... A> void pt_rest(const T& first, const A&... rest) { std::cout << " " << first; pt_rest(rest...); } template<class T, class... A> void pt(const T& first, const A&... rest) { std::cout << first; pt_rest(rest...); } template<typename V, typename H> void resize(vector<V>& vec, const H head){ vec.resize(head); } template<typename V, typename H, typename ... T> void resize(vector<V>& vec, const H& head, const T ... tail){ vec.resize(head); for(auto& v: vec) resize(v, tail...); } template<typename V, typename T> void fill(V& x, const T& val){ x = val; } template<typename V, typename T> void fill(vector<V>& vec, const T& val){ for(auto& v: vec) fill(v, val); } template<typename H> void vin(istream& is, const int idx, vector<H>& head){ is >> head[idx]; } template<typename H, typename ... T> void vin(istream& is, const int idx, vector<H>& head, T& ... tail){ vin(is >> head[idx], idx, tail...); } template<typename H, typename ... T> void vin(istream& is, vector<H>& head, T& ... tail){ for(int i=0; i<(int)head.size(); i++) vin(is, i, head, tail...); } template<typename H, typename ... T> void vin(vector<H>& head, T& ... tail){ vin(cin, head, tail...); } map<ll,ll>divisor(ll n){map<ll,ll>res;for(ll i=1;i*i<=n;i++)if(n%i==0){res[i]++;res[n/i]++;}return res;} map<ll,ll>factrization(ll n){map<ll,ll>res;for(ll i=2;i*i<=n;i++)while(n%i==0){res[i]++;n/=i;}if(n>1)res[n]++;return res;} static const ll inf=1e18+7; static const ld pi=acos(-1); static const ld eps=1e-10; using v1=vector<ll>; using v2=vector<v1>; using v3=vector<v2>; using v4=vector<v3>; using S=pll; S op(S a,S b){return max(a,b);} S e(){return {-inf,-inf};} class Edge { public: ll t,w; Edge(){} Edge(ll t,ll w): t(t),w(w){} }; v1 dijkstra(ll s,vector<vector<Edge>>g) { ll n=g.size(); v1 d(n,inf); priority_queue<pll,vector<pll>,greater<>>q; d[s]=0; q.push({0,s}); while(q.size()){ ll u=q.top().second; ll du=q.top().first; q.pop(); if(d[u]<du) continue; for(ll i=0;i<g[u].size();i++){ Edge e=g[u][i]; if(chmin(d[e.t],du+e.w))q.push({du+e.w, e.t}); } } return d; } int main(void) { cin.tie(nullptr); ios::sync_with_stdio(false); ll N,M,K;cin>>N>>M>>K; vector<vector<Edge>>g(N); set<ll>s; for(ll i=0;i<K;i++){ll r;cin>>r;r--;s.insert(r);} v2 es; for(ll i=0;i<M;i++){ ll a,b,c;cin>>a>>b>>c;a--;b--; if(a>b)swap(a,b); if(s.find(i)!=s.end()) es.push_back({a,b,(ll)g[a].size(),(ll)g[b].size()}); g[a].push_back({b,c}); g[b].push_back({a,c}); } v3 sd;resize(sd,K,2,N); v3 d;resize(d,K,2,N); for(ll i=0;i<K;i++){ ll a=es[i][0],b=es[i][1]; ll c=g[a][es[i][2]].w; d[i][0]=dijkstra(a,g); d[i][1]=dijkstra(b,g); g[a][es[i][2]].w=inf; g[b][es[i][3]].w=inf; sd[i][0]=dijkstra(a,g); sd[i][1]=dijkstra(b,g); g[a][es[i][2]].w=c; g[b][es[i][3]].w=c; } v3 dp;resize(dp,1<<K,K,2);fill(dp,inf); for(ll i=0;i<K;i++)for(ll j=0;j<2;j++){ if(d[i][j][0]<sd[i][j][0]){ dp[1<<i][i][j]=d[i][j][0]; }else{ ll w=g[es[i][j]][es[i][j+2]].w; ll cost=min(d[i][j][0]+w*2,d[i][!j][0]+w); dp[1<<i][i][j]=cost; } } for(ll S=0;S<1<<K;S++){ for(ll i=0;i<K;i++){ if(!(S>>i&1))continue; for(ll j=0;j<K;j++){ if(S>>j&1)continue; for(ll k=0;k<2;k++){ for(ll l=0;l<2;l++){ ll s=es[i][k],t=es[j][l]; if(d[j][l][s]<sd[j][l][s]){ chmin(dp[S|1<<j][j][l],dp[S][i][k]+d[j][l][s]); }else{ ll w=g[t][es[j][l+2]].w; ll cost=min(d[j][l][s]+w*2,d[j][!l][s]+w); chmin(dp[S|1<<j][j][l],dp[S][i][k]+cost); } } } } } } ll ans=inf; for(ll i=0;i<K;i++)for(ll j=0;j<2;j++)chmin(ans,dp[(1<<K)-1][i][j]+d[i][j][N-1]); pt(ans); }