Submission #628235

#	Time	Username	Problem	Language	Result	Execution time	Memory
628235		andrei_boaca	섬 항해 (CEOI13_adriatic)	C++14	60 / 100	2091 ms	66316 KiB

adriatic

#include <bits/stdc++.h>

using namespace std;
typedef long long ll;
typedef pair<int,int> pii;
int n;
vector<int> muchii[25005];
int my[25005][5];
struct point
{
    int x,y;
} v[25005];
ll dist[25005];
//priority_queue<pii,vector<pii>,greater<pii>> coada;
queue<pii> coada;
vector<int> old[25005];
void bfs(int start)
{
    for(int i=1;i<=n;i++)
        dist[i]=1e9;
    dist[start]=0;
    coada.push({0,start});
    while(!coada.empty())
    {
        int nod=coada.front().second;
        coada.pop();
        for(int i:muchii[nod])
            if(dist[i]>dist[nod]+1)
            {
                dist[i]=dist[nod]+1;
                coada.push({dist[i],i});
            }
    }
}
int sol[25005];
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cin>>n;
    for(int i=1;i<=n;i++)
        cin>>v[i].x>>v[i].y;
    for(int i=1;i<=n;i++)
    {
        int linmin=1e9,linmax=0,colmin=1e9,colmax=0;
        for(int j=1;j<=n;j++)
            if(j!=i)
            {
                if(v[i].x<v[j].x&&v[i].y<v[j].y)
                {
                    if(v[j].x<linmin)
                    {
                        linmin=v[j].x;
                        my[i][1]=j;
                    }
                    if(v[j].x>linmax)
                    {
                        linmax=v[j].x;
                        my[i][2]=j;
                    }
                    if(v[j].y<colmin)
                    {
                        colmin=v[j].y;
                        my[i][3]=j;
                    }
                    if(v[j].y>colmax)
                    {
                        colmax=v[j].y;
                        my[i][4]=j;
                    }
                }
                else if(v[i].x>v[j].x&&v[i].y>v[j].y)
                {
                    if(v[j].x<linmin)
                    {
                        linmin=v[j].x;
                        my[i][1]=j;
                    }
                    if(v[j].x>linmax)
                    {
                        linmax=v[j].x;
                        my[i][2]=j;
                    }
                    if(v[j].y<colmin)
                    {
                        colmin=v[j].y;
                        my[i][3]=j;
                    }
                    if(v[j].y>colmax)
                    {
                        colmax=v[j].y;
                        my[i][4]=j;
                    }
                }
            }
    }
    /*for(int i=1;i<=4;i++)
        cout<<my[7][i]<<' ';
    cout<<'\n';*/
    for(int j=1;j<=n;j++)
        {
            for(int k=1;k<=4;k++)
            {
                int nod=my[j][k];
                muchii[nod].push_back(j);
                //old[nod].push_back(j);
                //muchii[j].push_back(nod);
            }
        }
    for(int i=1;i<=n;i++)
    {
        sort(muchii[i].begin(),muchii[i].end());
        muchii[i].erase(unique(muchii[i].begin(),muchii[i].end()),muchii[i].end());
        old[i]=muchii[i];
    }
    for(int i=1;i<=n;i++)
    {
        muchii[i].clear();
        //muchii[i]=nw[i];
        for(int j=1;j<=n;j++)
        {
            if(v[i].x<v[j].x&&v[i].y<v[j].y)
            {
                muchii[i].push_back(j);
                //muchii[j].push_back(i);
            }
            else if(v[i].x>v[j].x&&v[i].y>v[j].y)
            {
                muchii[i].push_back(j);
                //muchii[j].push_back(i);
            }
        }
        bfs(i);
        muchii[i].clear();
        muchii[i]=old[i];
        ll suma=0;
        for(int j=1;j<=n;j++)
            suma+=dist[j];
        cout<<suma<<'\n';
    }
    return 0;
}

• Subtask 1: 25 / 25
• Subtask 2: 25 / 25
• Subtask 3: 10 / 10
• Subtask 4: 0 / 20
• Subtask 5: 0 / 20