Submission #364396

#	Time	Username	Problem	Language	Result	Execution time	Memory
364396		daniel920712	Fortune Telling 2 (JOI14_fortune_telling2)	C++14	0 / 100	137 ms	192252 KiB

fortune_telling2

#include <iostream>
#include <stdio.h>
#include <stdlib.h>
#include <vector>
#include <algorithm>
#include <string.h>
#include <map>
#include <vector>
#include <set>

using namespace std;
long long x[200005],y[200005];
pair < long long , long long > all[200005];
vector < pair < pair < long long , long long > , pair < long long , long long > > > a,b;
bool F(pair < long long , long long > a,pair < long long , long long > b)
{
    if(a.first>b.first) return 1;
    if(a.first<b.first) return 0;
    return a.second<b.second;
}
set < long long > vis;
struct A
{
    long long l,r;
    long long nxl,nxr,nxt;
    long long add;
    map < pair < long long ,long long > , long long > all;
}Node[2000005];
long long now=1;
void New(long long l,long long r,long long a,long long here)
{
    Node[here].l=l;
    Node[here].r=r;
    Node[here].add=0;
    Node[here].nxl=-1;
    Node[here].nxr=-1;
    Node[here].nxt=a;
}
long long Find(long long x,long long y,long long here)
{
    long long t=0;
    if(here==-1) return 0;
    //printf("%lld %lld\n",Node[here].l,Node[here].r);
    if(Node[here].all.upper_bound(make_pair(y,2e9))==Node[here].all.begin()) t=0;
    else
    {
        //printf("aa\n");
        auto a=*prev(Node[here].all.upper_bound(make_pair(y,y)));
        if(a.first.first<=y&&a.first.second>=y) t+=a.second;
    }
    if(Node[here].l==Node[here].r) return t;
    if(x<=(Node[here].l+Node[here].r)/2) t+=Find(x,y,Node[here].nxl);
    else t+=Find(x,y,Node[here].nxr);

    return t;
}
void add(long long l1,long long r1,long long l2,long long r2,long long con,long long here)
{
    long long t;

    if(l1==Node[here].l&&r1==Node[here].r)
    {
        Node[here].all[make_pair(l2,r2)]=con;
        //printf("%lld %lld %lld %lld %lld\n",l1,r1,l2,r2,con);
        return;
    }
    if(r1<=(Node[here].l+Node[here].r)/2)
    {
        if(Node[here].nxl==-1)
        {
            Node[here].nxl=now++;
            New(Node[here].l,(Node[here].l+Node[here].r)/2,-1,Node[here].nxl);
        }
        add(l1,r1,l2,r2,con,Node[here].nxl);
    }
    else if(l1>(Node[here].l+Node[here].r)/2)
    {
        if(Node[here].nxr==-1)
        {
            Node[here].nxr=now++;
            New((Node[here].l+Node[here].r)/2+1,Node[here].r,-1,Node[here].nxr);
        }
        add(l1,r1,l2,r2,con,Node[here].nxr);
    }
    else
    {
        if(Node[here].nxl==-1)
        {
            Node[here].nxl=now++;
            New(Node[here].l,(Node[here].l+Node[here].r)/2,-1,Node[here].nxl);
        }
        add(l1,(Node[here].l+Node[here].r)/2,l2,r2,con,Node[here].nxl);
        if(Node[here].nxr==-1)
        {
            Node[here].nxr=now++;
            New((Node[here].l+Node[here].r)/2+1,Node[here].r,-1,Node[here].nxr);
        }
        add((Node[here].l+Node[here].r)/2+1,r1,l2,r2,con,Node[here].nxr);

    }
}
int main()
{
    long long N,K,i,j,con,ok=0,ans=0,con2=0,tt,tt2;
    scanf("%lld %lld",&N,&K);
    for(i=0;i<N;i++) scanf("%lld %lld",&x[i],&y[i]);
    for(i=1;i<=K;i++)
    {
        scanf("%lld",&all[i].first);
        all[i].second=i;
    }
    vis.insert(0);
    vis.insert(2e9);

    for(i=K;i>=1;i--)
    {
        con=0;
        for(j=i+1;j<=K;j++) if(all[j].first>all[i].first) con++;
        if(vis.find(all[i].first)!=vis.end()) continue;
        tt=*vis.upper_bound(all[i].first);
        tt2=*prev(vis.upper_bound(all[i].first));
        if(con%2==0)
        {
            a.push_back(make_pair(make_pair(all[i].first+1,tt),make_pair(tt2,all[i].first)));
            b.push_back(make_pair(make_pair(tt2,all[i].first),make_pair(all[i].first+1,tt)));
        }
        else
        {
            b.push_back(make_pair(make_pair(all[i].first+1,tt),make_pair(tt2,all[i].first)));
            a.push_back(make_pair(make_pair(tt2,all[i].first),make_pair(all[i].first+1,tt)));
        }
        vis.insert(all[i].first);
    }
    New(0,2e9,-1,0);
    all[0].first=2e9;
    all[0].second=0;
    sort(all+1,all+K+1,F);
    all[K+1].first=0;
    all[K+1].second=K+1;

    for(i=1;i<=K+1;i++)
    {
        con=0;
        con2=0;
        for(j=0;j<i;j++) if(all[j].second>all[i].second&&all[j].first>all[i].first) con++;
        for(j=0;j<i;j++) if(all[j].first>all[i].first) con2++;
        if(all[i].first!=all[i-1].first)
        {
            //printf("%lld %lld\n",all[i].first,all[i-1].first);
            if(con2%2==1) a.push_back(make_pair(make_pair(all[i].first+1,all[i-1].first),make_pair(all[i].first+1,all[i-1].first)));
            else b.push_back(make_pair(make_pair(all[i].first+1,all[i-1].first),make_pair(all[i].first+1,all[i-1].first)));
        }
    }

    for(auto j:a)
    {
        //printf("%lld %lld %lld %lld\n",j.first.first,j.first.second,j.second.first,j.second.second);
        add(j.first.first,j.first.second,j.second.first,j.second.second,1,0);
    }
    for(auto j:b)
    {
        //printf("%lld %lld %lld %lld\n",j.first.first,j.first.second,j.second.first,j.second.second);
        add(j.first.first,j.first.second,j.second.first,j.second.second,1e9,0);
    }

    for(i=0;i<N;i++)
    {
        ok=0;
        ok=Find(x[i],y[i],0);
        //printf("%lld\n",ok);
        if(ok==1000000000) ans+=y[i];
        else ans+=x[i];
        
    }
    printf("%lld\n",ans);

    return 0;
}

Compilation message (stderr)

fortune_telling2.cpp: In function 'void add(long long int, long long int, long long int, long long int, long long int, long long int)':
fortune_telling2.cpp:59:15: warning: unused variable 't' [-Wunused-variable]
   59 |     long long t;
      |               ^
fortune_telling2.cpp: In function 'int main()':
fortune_telling2.cpp:105:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  105 |     scanf("%lld %lld",&N,&K);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~
fortune_telling2.cpp:106:27: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  106 |     for(i=0;i<N;i++) scanf("%lld %lld",&x[i],&y[i]);
      |                      ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
fortune_telling2.cpp:109:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  109 |         scanf("%lld",&all[i].first);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 4
• Subtask 2: 0 / 31
• Subtask 3: 0 / 65