#include<bits/stdc++.h>
typedef long long int;
#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];
vector<int> v[101010];
pair<pair<int,int>,pair<int,int> > A[101010];
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 main()
{
ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
cin>>n;
for(i=1;i<=n;i++)
{
cin>>ta>>tb>>tc>>td;
A[i]=mp(mp(ta,tb),mp(tc,td));
}
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));
for(i=1;i<=n;i++)
h1=max(h1,depe(i));
cout<<h1<<" "<<h2<<"\n";
}
Compilation message
trapezoid.cpp:2:19: error: declaration does not declare anything [-fpermissive]
typedef long long int;
^~~
trapezoid.cpp: In function 'int depe(int)':
trapezoid.cpp:17:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(ii=0;ii<v[aa].size();ii++)
~~^~~~~~~~~~~~~
