#include<bits/stdc++.h>
typedef long long ll;
#define pb push_back
#define mp make_pair
#define fi first
#define se second
using namespace std;
int n,i,ta,tb,tc,td,j,h1,h2,d[101010],d2[101010],mo=30013,K,ST[808080];
vector<int> v[101010],z;
pair<pair<int,int>,pair<int,int> > A[101010];
map<int,int> me;
int depe(int aa)
{
if(d[aa]==-1)
{
d[aa]=0;
int ii;
for(ii=0;ii<v[aa].size();ii++)
d[aa]=max(d[aa],depe(v[aa][ii]));
d[aa]++;
}
return d[aa];
}
int depe2(int aa)
{
if(depe(aa)==1)return 1;
if(d2[aa]==-1)
{
d2[aa]=0;
int ii;
for(ii=0;ii<v[aa].size();ii++)
if(depe(aa)==depe(v[aa][ii])+1)
d2[aa]=(d2[aa]+depe2(v[aa][ii]))%mo;
}
return d2[aa];
}
void upd(ll aa,ll bb,ll cc,ll dd,ll ee)
{
if(aa==bb)ST[ee]=dd;
else
{
ll ce=(aa+bb)/2;
if(cc<=ce)
upd(aa,ce,cc,dd,ee*2);
else
upd(ce+1,bb,cc,dd,ee*2+1);
ST[ee]=max(ST[ee*2],ST[ee*2+1]);
}
}
ll que(ll aa,ll bb,ll cc,ll dd,ll ee)
{
if(bb<cc||dd<aa)return 0;
else
if(cc<=aa&&bb<=dd)return ST[ee];
else
{
ll ce=(aa+bb)/2;
return max(que(aa,ce,cc,dd,ee*2),que(ce+1,bb,cc,dd,ee*2+1));
}
}
int main()
{
ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
cin>>n;
K=n*2;
for(i=1;i<=n;i++)
{
cin>>ta>>tb>>tc>>td;
A[i]=mp(mp(ta,tb),mp(tc,td));
z.pb(tc);
z.pb(td+1);
}
sort(z.begin(),z.end());
for(i=0;i<z.size();i++)
me[z[i]]=i+1;
if(1)
{
sort(A+1,A+1+n);
for(i=1;i<=n;i++)
{
int L=i+1,R=n,C,H=0;
while(L<=R)
{
C=(L+R)/2;
if(A[i].fi.se<A[C].fi.fi)
{
H=C;
R=C-1;
}
else
L=C+1;
}
if(H)
v[H].pb(i);
}
//return 0;
for(i=n;i>=1;i--)d[i]=1;
for(i=n;i>=1;i--)
{
if(que(1,K,me[A[i].se.fi],K,1)<=K)
upd(1,K,me[A[i].se.fi],d[i],1);
for(j=0;j<v[i].size();j++)
{
int now=v[i][j];
d[now]=que(1,K,me[A[now].se.se+1],K,1)+1;
}
h1=max(h1,d[i]);
}
}
else
{
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
if(A[i].fi.se<A[j].fi.fi&&A[i].se.se<A[j].se.fi)
v[i].pb(j);
memset(d,-1,sizeof(d));
memset(d2,-1,sizeof(d2));
for(i=1;i<=n;i++)
h1=max(h1,depe(i));
for(i=1;i<=n;i++)
if(depe(i)==h1)
h2=(h2+depe2(i))%mo;
}
cout<<h1<<" "<<h2<<"\n";
}
Compilation message
trapezoid.cpp: In function 'int depe(int)':
trapezoid.cpp:18:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(ii=0;ii<v[aa].size();ii++)
~~^~~~~~~~~~~~~
trapezoid.cpp: In function 'int depe2(int)':
trapezoid.cpp:31:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(ii=0;ii<v[aa].size();ii++)
~~^~~~~~~~~~~~~
trapezoid.cpp: In function 'int main()':
trapezoid.cpp:74:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(i=0;i<z.size();i++)
~^~~~~~~~~
trapezoid.cpp:102:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(j=0;j<v[i].size();j++)
~^~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Partially correct |
5 ms |
2808 KB |
Partially correct |
| 2 |
Partially correct |
5 ms |
2808 KB |
Partially correct |
| 3 |
Partially correct |
5 ms |
2808 KB |
Partially correct |
| 4 |
Partially correct |
6 ms |
2808 KB |
Partially correct |
| 5 |
Partially correct |
7 ms |
3068 KB |
Partially correct |
| 6 |
Partially correct |
10 ms |
3192 KB |
Partially correct |
| 7 |
Partially correct |
12 ms |
3320 KB |
Partially correct |
| 8 |
Partially correct |
15 ms |
3448 KB |
Partially correct |
| 9 |
Partially correct |
24 ms |
4216 KB |
Partially correct |
| 10 |
Partially correct |
44 ms |
5964 KB |
Partially correct |
| 11 |
Partially correct |
60 ms |
6520 KB |
Partially correct |
| 12 |
Partially correct |
132 ms |
10076 KB |
Partially correct |
| 13 |
Partially correct |
166 ms |
11636 KB |
Partially correct |
| 14 |
Partially correct |
201 ms |
14184 KB |
Partially correct |
| 15 |
Partially correct |
229 ms |
14104 KB |
Partially correct |
| 16 |
Partially correct |
247 ms |
14828 KB |
Partially correct |
| 17 |
Partially correct |
256 ms |
15728 KB |
Partially correct |
| 18 |
Partially correct |
219 ms |
15780 KB |
Partially correct |
| 19 |
Partially correct |
258 ms |
16636 KB |
Partially correct |
| 20 |
Partially correct |
296 ms |
17224 KB |
Partially correct |
