oj.uz

Submission #203002

# Submission time Handle Problem Language Result Execution time Memory
203002 2020-02-19T00:47:13 Z gs18115 timeismoney (balkan11_timeismoney) C++14
100 / 100
 505 ms 760 KB 
#include<iostream>
#include<vector>
#include<algorithm>
#define ep emplace
#define eb emplace_back
#define fi first
#define se second
#define all(x) (x).begin(),(x).end()
#define semicolon ;
#define ryan bear
using namespace std;
typedef long long ll;
typedef pair<int,int>pi;
typedef pair<ll,ll>pl;
const int inf=1e9+7;
const ll INF=1e18+7;
pl operator-(pl x,pl y)
{
    return pl(x.fi-y.fi,x.se-y.se);
}
inline ll ccw(pl x,pl y)
{
    return x.fi*y.se-x.se*y.fi;
}
int pa[205];
int par(int x)
{
    if(pa[x]==-1)
        return x;
    return pa[x]=par(pa[x]);
}
int v,e;
vector<pair<pi,pl> >edges;
inline void sort(const pl&p)
{
    sort(all(edges),[=](pair<pi,pl>&x,pair<pi,pl>&y){return x.se.fi*p.se+x.se.se*p.fi<y.se.fi*p.se+y.se.se*p.fi;});
    return;
}
vector<pi>ae;
pl mst(const pl&p)
{
    sort(p);
    ae.clear();
    fill(pa,pa+v,-1);
    ll ct=0,cc=0;
    for(auto&t:edges)
        if(par(t.fi.fi)!=par(t.fi.se))
            pa[par(t.fi.fi)]=par(t.fi.se),ct+=t.se.fi,cc+=t.se.se,ae.eb(t.fi);
    return pl(ct,cc);
}
ll ans;
pl ai;
void findconvex(pl left,pl right)
{
    pl p=left-right;
    p.se=-p.se;
    pl c=mst(p);
    if(c.fi*c.se<ans)
        ai=p,ans=c.fi*c.se;
    if(ccw(left-c,right-c)>0)
        findconvex(left,c),findconvex(c,right);
    return;
}
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    cin>>v>>e;
    edges.resize(e);
    for(auto&t:edges)
        cin>>t.fi.fi>>t.fi.se>>t.se.fi>>t.se.se;
    pl c1=mst(pl(1,65536));
    pl c2=mst(pl(65536,1));
    if(c1.fi*c1.se<c2.fi*c2.se)
        ans=c1.fi*c1.se,ai=pl(1,65536);
    else
        ans=c2.fi*c2.se,ai=pl(65536,1);
    findconvex(c2,c1);
    pl c=mst(ai);
    cout<<c.fi<<' '<<c.se<<endl;
    for(pi&t:ae)
        cout<<'\n'<<t.fi<<' '<<t.se;
    cout<<endl;
    return 0;
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 6 ms 376 KB Output is correct
8 Correct 9 ms 632 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 5 ms 376 KB Output is correct
12 Correct 5 ms 376 KB Output is correct
13 Correct 5 ms 376 KB Output is correct
14 Correct 10 ms 376 KB Output is correct
15 Correct 8 ms 376 KB Output is correct
16 Correct 74 ms 376 KB Output is correct
17 Correct 71 ms 376 KB Output is correct
18 Correct 67 ms 376 KB Output is correct
19 Correct 503 ms 760 KB Output is correct
20 Correct 505 ms 760 KB Output is correct