Submission #97761

#	Time	Username	Problem	Language	Result	Execution time	Memory
97761		Bodo171	Exhibition (JOI19_ho_t2)	C++14	100 / 100	89 ms	1664 KiB

joi2019_ho_t2

#include <iostream>
#include <fstream>
#include <algorithm>
using namespace std;
const int nmax=100005;
pair<int,int> v[nmax];
int a[nmax];
int n,m,i;
bool check(int poz)
{
    poz=m-poz+1;
    for(i=1;i<=n;i++)
        if(poz<=m&&v[i].second<=a[poz])
            poz++;
    return (poz>m);
}
int main()
{
    //freopen("data.in","r",stdin);
    ios_base::sync_with_stdio(false);
    cin>>n>>m;
    for(i=1;i<=n;i++)
    {
        cin>>v[i].second>>v[i].first;
    }
    sort(v+1,v+n+1);
    for(i=1;i<=m;i++)
    {
        cin>>a[i];
    }
    sort(a+1,a+m+1);
    int ans=0;
    for(int p=17;p>=0;p--)
        if(ans+(1<<p)<=m&&check(ans+(1<<p)))
           ans+=(1<<p);
    cout<<ans;
    return 0;
}

• Subtask 1: 10 / 10
• Subtask 2: 40 / 40
• Subtask 3: 50 / 50