結果
問題 | No.1607 Kth Maximum Card |
ユーザー | PCTprobability |
提出日時 | 2021-07-16 22:24:12 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 2,841 ms / 3,500 ms |
コード長 | 7,539 bytes |
コンパイル時間 | 7,101 ms |
コンパイル使用メモリ | 316,600 KB |
実行使用メモリ | 26,176 KB |
最終ジャッジ日時 | 2024-07-06 09:51:02 |
合計ジャッジ時間 | 34,391 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
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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
6,940 KB |
testcase_02 | AC | 2 ms
6,940 KB |
testcase_03 | AC | 2 ms
6,940 KB |
testcase_04 | AC | 2 ms
6,940 KB |
testcase_05 | AC | 2 ms
6,940 KB |
testcase_06 | AC | 2 ms
6,944 KB |
testcase_07 | AC | 2 ms
6,940 KB |
testcase_08 | AC | 2,818 ms
26,144 KB |
testcase_09 | AC | 2,142 ms
22,172 KB |
testcase_10 | AC | 2,836 ms
26,136 KB |
testcase_11 | AC | 326 ms
8,664 KB |
testcase_12 | AC | 1,975 ms
21,396 KB |
testcase_13 | AC | 143 ms
6,944 KB |
testcase_14 | AC | 195 ms
7,940 KB |
testcase_15 | AC | 1,395 ms
21,328 KB |
testcase_16 | AC | 145 ms
7,296 KB |
testcase_17 | AC | 49 ms
6,944 KB |
testcase_18 | AC | 656 ms
16,156 KB |
testcase_19 | AC | 340 ms
11,392 KB |
testcase_20 | AC | 557 ms
13,348 KB |
testcase_21 | AC | 581 ms
14,592 KB |
testcase_22 | AC | 1,570 ms
25,216 KB |
testcase_23 | AC | 1,792 ms
25,136 KB |
testcase_24 | AC | 471 ms
10,644 KB |
testcase_25 | AC | 231 ms
7,888 KB |
testcase_26 | AC | 287 ms
8,964 KB |
testcase_27 | AC | 438 ms
10,972 KB |
testcase_28 | AC | 335 ms
9,644 KB |
testcase_29 | AC | 1,250 ms
17,000 KB |
testcase_30 | AC | 2,841 ms
26,176 KB |
testcase_31 | AC | 1,051 ms
15,692 KB |
testcase_32 | AC | 288 ms
18,624 KB |
testcase_33 | AC | 283 ms
18,688 KB |
testcase_34 | AC | 285 ms
18,628 KB |
testcase_35 | AC | 286 ms
18,548 KB |
ソースコード
#pragma GCC target("avx2") #pragma GCC optimize("O3") #pragma GCC optimize("unroll-loops") #pragma GCC optimize("Ofast") #include <bits/stdc++.h> #include <unistd.h> using namespace std; #if __has_include(<atcoder/all>) #include <atcoder/all> using namespace atcoder; #endif using ll = long long; using ld = long double; using ull = long long; #define endl "\n" #define REP3(i, m, n) for (int i = (m); (i) < int(n); ++ (i)) #define rep(i,a,b) for(int i=(int)(a);i<(int)(b);i++) #define ALL(x) begin(x), end(x) #define all(s) (s).begin(),(s).end() //#define rep2(i, m, n) for (int i = (m); i < (n); ++i) //#define rep(i, n) rep2(i, 0, n) #define PB push_back #define drep2(i, m, n) for (int i = (m)-1; i >= (n); --i) #define drep(i, n) drep2(i, n, 0) #define rever(vec) reverse(vec.begin(), vec.end()) #define sor(vec) sort(vec.begin(), vec.end()) #define FOR(i,a,b) for(ll i=a;i<=(ll)(b);i++) #define fi first #define se second #define pb push_back #define P pair<ll,ll> #define NP next_permutation //const ll mod = 998244353; const ll mod = 1000000007; const ll inf = 4500000000000000000ll; static const long double pi = 3.141592653589793; template<class T>void vcin(vector<T> &n){for(int i=0;i<int(n.size());i++) cin>>n[i];} template<class T,class K>void vcin(vector<T> &n,vector<K> &m){for(int i=0;i<int(n.size());i++) cin>>n[i]>>m[i];} template<class T>void vcout(vector<T> &n){for(int i=0;i<int(n.size());i++){cout<<n[i]<<" ";}cout<<endl;} template<class T>void vcin(vector<vector<T>> &n){for(int i=0;i<int(n.size());i++){for(int j=0;j<int(n[i].size());j++){cin>>n[i][j];}}} template<class T>void vcout(vector<vector<T>> &n){for(int i=0;i<int(n.size());i++){for(int j=0;j<int(n[i].size());j++){cout<<n[i][j]<<" ";}cout<<endl;}cout<<endl;} void yes(bool a){cout<<(a?"yes":"no")<<endl;} void YES(bool a){cout<<(a?"YES":"NO")<<endl;} void Yes(bool a){cout<<(a?"Yes":"No")<<endl;} void possible(bool a){ cout<<(a?"possible":"impossible")<<endl; } void Possible(bool a){ cout<<(a?"Possible":"Impossible")<<endl; } void POSSIBLE(bool a){ cout<<(a?"POSSIBLE":"IMPOSSIBLE")<<endl; } template<class T>auto min(const T& a){ return *min_element(all(a)); } template<class T>auto max(const T& a){ return *max_element(all(a)); } template<class T,class F>void print(pair<T,F> a){cout<<a.fi<<" "<<a.se<<endl;} 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;} template<class T> void ifmin(T t,T u){if(t>u){cout<<-1<<endl;}else{cout<<t<<endl;}} template<class T> void ifmax(T t,T u){if(t>u){cout<<-1<<endl;}else{cout<<t<<endl;}} template<typename T,typename ...Args>auto make_vector(T x,int arg,Args ...args){if constexpr(sizeof...(args)==0)return vector<T>(arg,x);else return vector(arg,make_vector<T>(x,args...));} ll modPow(ll a, ll n, ll mod) { if(mod==1) return 0;ll ret = 1; ll p = a % mod; while (n) { if (n & 1) ret = ret * p % mod; p = p * p % mod; n >>= 1; } return ret; } vector<ll> divisor(ll x){ vector<ll> ans; for(ll i = 1; i * i <= x; i++){ if(x % i == 0) {ans.push_back(i); if(i*i!=x){ ans.push_back(x / ans[i]);}}}sor(ans); return ans; } template<class T> struct Sum{ vector<T> data; Sum(const vector<T>& v):data(v.size()+1){ for(ll i=0;i<v.size();i++) data[i+1]=data[i]+v[i]; } T get(ll l,ll r) const { return data[r]-data[l]; } }; template<class T> struct Sum2{ vector<vector<T>> data; Sum2(const vector<vector<T>> &v):data(v.size()+1,vector<T>(v[0].size()+1)){ for(int i=0;i<v.size();i++) for(int j=0;j<v[i].size();j++) data[i+1][j+1]=data[i][j+1]+v[i][j]; for(int i=0;i<v.size();i++) for(int j=0;j<v[i].size();j++) data[i+1][j+1]+=data[i+1][j]; } T get(ll x1,ll y1,ll x2,ll y2) const { return data[x2][y2]+data[x1][y1]-data[x1][y2]-data[x2][y1]; } }; void cincout(){ ios::sync_with_stdio(false); std::cin.tie(nullptr); cout<< fixed << setprecision(20); } struct graph{ struct edge{ ll to,cost; }; ll v; vector<vector<edge>> g; vector<ll> d; vector<bool> negative; vector<bool> diameter; vector<ll> topological_sort; ll diametercost; bool bipartitecheck; vector<ll> bipartite; graph(ll n){ init(n); } void init(ll n){ v=n; g.resize(n); d.resize(n); negative.resize(n); diameter.resize(n); bipartite.resize(n); for(int i=0;i<v;i++){ d[i]=inf; bipartite[i]=-1; negative[i]=false; diameter[i]=false; } } void addedge(ll s,ll t,ll cost){ edge e; e.to=t; e.cost=cost; g[s].push_back(e); } void dijkstra(ll s){ for(int i=0;i<v;i++){ d[i]=inf; } d[s]=0; priority_queue<P,vector<P>,greater<P>> que; que.push(P(0,s)); while(!que.empty()){ P p=que.top(); que.pop(); ll V=p.second; if(d[V]<p.first) continue; for(auto e:g[V]){ if(d[e.to]>d[V]+e.cost){ d[e.to]=d[V]+e.cost; que.push(P(d[e.to],e.to)); } } } } void BellmanFord(ll s){ for(int i=0;i<v;i++){ d[i]=inf; negative[i]=false; } d[s]=0; for(int i=0;i<v;i++){ for(int V=0;V<v;V++){ if(d[V]==inf){ continue; } for(auto e:g[V]){ if(d[e.to]>d[V]+e.cost){ d[e.to]=d[V]+e.cost; if(i==v-1){ negative[e.to]=true; negative[V]=true; } } } } } } void dfs(ll s){ for(int i=0;i<v;i++){ d[i]=inf; } d[s]=0; dfs2(s,-1); } void dfs2(ll s,ll v){ for(auto e:g[s]){ if(e.to==v) continue; if(d[e.to]>d[s]+e.cost){ d[e.to]=d[s]+e.cost; dfs2(e.to,s); } } } void treediameter(){ dfs(0); ll p=0; ll q=0; for(int i=0;i<v;i++){ if(q<d[i]){ q=d[i]; p=i; } } diameter[p]=true; dfs(p); ll p2=0; ll q2=0; for(int i=0;i<v;i++){ if(q2<d[i]){ q2=d[i]; p2=i; } } diameter[p2]=true; diametercost=d[p2]; } void Bipartite(){ for(int i=0;i<v;i++){ if(bipartite[i]==-1){ Bipartitedfs(i); } } } void Bipartitedfs(ll s,ll cur=0){ bipartite[s]=cur; for(auto e:g[s]){ if(bipartite[e.to]!=-1){ if((bipartite[e.to]==bipartite[s])^(!e.cost%2)){ bipartitecheck=false; } } else{ if(e.cost%2){ Bipartitedfs(e.to,1-cur); } else{ Bipartitedfs(e.to,cur); } } } } void topologicalsort(){ for(int i=0;i<v;i++){ d[i]=0; } for(int i=0;i<v;i++){ if(d[i]) continue; topologicaldfs(i); } rever(topological_sort); } void topologicaldfs(ll a){ d[a]=1; for(auto e:g[a]){ if(d[e.to]) continue; topologicaldfs(e.to); } topological_sort.push_back(a); } }; int main() { cincout(); ll n,m; ll k; cin>>n>>m; cin>>k; vector<ll> a(m),b(m),c(m); for(int i=0;i<m;i++){ cin>>a[i]>>b[i]>>c[i]; a[i]--; b[i]--; } ll ok=-1,ng=300000; swap(ok,ng); while(abs(ok-ng)>1){ ll t=(ok+ng)/2; graph g(n); for(int i=0;i<m;i++){ if(t>=c[i]){ g.addedge(a[i],b[i],0); g.addedge(b[i],a[i],0); } else{ g.addedge(a[i],b[i],1); g.addedge(b[i],a[i],1); } } g.dijkstra(0); //cout<<ok<<" "<<ng<<" "<<t<<" "<<g.d[n-1]<<endl; if(g.d[n-1]<k) ok=t; else ng=t; } cout<<ok<<endl; }