Submission #166842

#	Time	Username	Problem	Language	Result	Execution time	Memory
166842		theStaticMind	Ceste (COCI17_ceste)	C++14	96 / 160	270 ms	29456 KiB

ceste

#include<bits/stdc++.h>
#define ii pair<int,int>
#define mp make_pair
#define pb push_back
#define all(x) (x).begin(),(x).end()
#define INF 100000000000000000
#define int long long int
#define modulo 1000000007
using namespace std;
struct data{
      mutable int time,cost;
      data(int x,int y):time(x),cost(y){}
      bool operator<(const data& A)const{
            return time<A.time;
      }
};
struct Cont : set<data>{
      void add(data A){
            if(empty()){
                  insert(A);
                  return;
            }
            iterator pre=upper_bound(A);
            if(pre!=begin()){
                  pre--;
                  if(pre->cost<=A.cost)return;
                  if(pre->time==A.time&&pre->cost>A.cost)erase(pre);
            }
            iterator curr=insert(A).first;
            iterator next=curr;
            next++;
            while(next!=end()&&next->cost>=A.cost)next=erase(next);
      }
};
struct P{
      int y,t,c;
      P(int a,int b,int C){
            y=a;
            t=b;
            c=C;
      }
};
vector<bool>vis(2002,false);
vector<Cont> val(2002);
vector<P>adj[2002];
int32_t main(){
      ios_base::sync_with_stdio(false);
      cin.tie(NULL);
  //    freopen("q.gir","r",stdin);
  //    freopen("q.cik","w",stdout);
      int n,m;
      cin>>n>>m;
      for(int i=0;i<m;i++){
            int x,y,t,c;
            cin>>x>>y>>t>>c;
            adj[x].pb(P(y,t,c));
            adj[y].pb(P(x,t,c));
      }
      val[1].add(data(0,0));
      priority_queue<ii,vector<ii>,greater<ii>> Q;
      Q.push({0,1});
      while(!Q.empty()){
            int x,y,t,c;
            x=Q.top().second;
            Q.pop();
            if(vis[x])continue;
            vis[x]=true;
            for(int i=0;i<adj[x].size();i++){
                  y=adj[x][i].y;
                  t=adj[x][i].t;
                  c=adj[x][i].c;
                  if(vis[y])continue;
                  for(Cont::iterator itr=val[x].begin();itr!=val[x].end();itr++){
                        val[y].add(data(itr->time+t,itr->cost+c));
                        Q.push({(itr->time+t)*(itr->cost+c),y});
                  }
            }
      }
      for(int i=2;i<=n;i++){
            if(val[i].empty())cout<<-1<<"\n";
            else {
                  int ans=INF;
                  for(Cont::iterator itr=val[i].begin();itr!=val[i].end();itr++){
                        ans=min(ans,itr->time*itr->cost);
                  }
                  cout<<ans<<"\n";
            }
      }
}

Compilation message (stderr)

ceste.cpp: In function 'int32_t main()':
ceste.cpp:68:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             for(int i=0;i<adj[x].size();i++){
                         ~^~~~~~~~~~~~~~

• Subtask 1: 16 / 16
• Subtask 2: 16 / 16
• Subtask 3: 0 / 16
• Subtask 4: 16 / 16
• Subtask 5: 0 / 16
• Subtask 6: 0 / 16
• Subtask 7: 0 / 16
• Subtask 8: 16 / 16
• Subtask 9: 16 / 16
• Subtask 10: 16 / 16