Submission #787704

#	Time	Username	Problem	Language	Result	Execution time	Memory
787704		8pete8	trapezoid (balkan11_trapezoid)	C++14	100 / 100	162 ms	18800 KiB

trapezoid

#include<iostream>
#include<stack>
#include<map>
#include<vector>
#include<string>
#include<unordered_map>
#include <queue>
#include<cstring>
#include<limits.h>
#include<cmath>
#include<set>
#include<algorithm>
#include<bitset>
#include<stack>
using namespace std;
#define ll long long
#define f first
#define endl "\n"
#define s second
#define pii pair<int,int>
#define pppiiii pair<pii,pii>
#define ppii pair<pii,pii>
#define all(x) x.begin(),x.end()
#define pb push_back
#define mp make_pair
#define lb lower_bound
#define ub upper_bound
#define fastio ios::sync_with_stdio(false);cin.tie(NULL);
const int mxn=2*1e5+1,mx=1e6;
#define int long long
pii seg[3*mxn+10];
//mx size + way
int n;
pii comp(pii a,pii b){
    pii tmp=max(a,b);
    if(a.f==b.f)tmp.s=(a.s+b.s)%30013;
    if(tmp.f==0)tmp.s=1;
    return tmp;
}
void upd(int pos,pii val){
    pos+=n;
    seg[pos]=comp(seg[pos],val);
    for(;pos>1;pos>>=1)seg[pos>>1]=comp(seg[pos],seg[pos^1]);
}
pii qry(int l,int r){
    pii ans={0,0};
    for(l+=n,r+=n;l<r;l>>=1,r>>=1){
        if(l&1)ans=comp(ans,seg[l++]);
        if((r&1))ans=comp(ans,seg[--r]);
    }
    if(ans.f==0)ans.s=1;
    return ans;
}
vector<int>up;
int getpos(int val){return lb(all(up),val)-up.begin();}
pii ans[mxn+10];
int32_t main(){
    //bot start = qry the up start
    //bot end = update up end
    cin>>n;
    vector<ppii>v;
    for(int i=0;i<n;i++){
        pii a,b;cin>>a.s>>b.s>>a.f>>b.f;
        //up start, up end,bot start, bot end
        up.pb(a.s);
        up.pb(b.s);
        v.pb({a,{1,i}});
        v.pb({b,{-1,i}});
    }
    sort(all(up));
    sort(all(v));
    n*=2;
    for(auto i:v){
        if(i.s.f==1){
            int pos=getpos(i.f.s);
            ans[i.s.s]=qry(0,pos);
            ans[i.s.s].f++;
        }
        else upd(getpos(i.f.s),ans[i.s.s]);
    }
    pii ans=qry(0,n);
    cout<<ans.f<<" "<<ans.s<<'\n';
}

• Subtask 1: 100 / 100