Submission #1158820

#	Time	Username	Problem	Language	Result	Execution time	Memory
1158820		wjliangtpe	Exhibition (JOI19_ho_t2)	C++20	10 / 100	1 ms	328 KiB

joi2019_ho_t2

#include<bits/stdc++.h>
using namespace std;
//#define int long long
#define oo 10000000000000001
int n,m,c[200005];
int v[200005],s[200005],srtv[200005],seqv[200005],seqs[200005],seq[200005],pos,ans;
signed main(){
    ios::sync_with_stdio(0),cin.tie(0);
    cin>>n>>m;
    for(int i=1;i<=n;i++){
        cin>>s[i]>>v[i];
        srtv[i]=-v[i];
    }
    for(int i=1;i<=m;i++){
        cin>>c[i];
        c[i]=-c[i];
    }
    sort(c+1,c+m+1),sort(srtv+1,srtv+n+1);
    for(int i=1;i<=n;i++){
        seqs[i]=upper_bound(c+1,c+m+1,-s[i])-c-1;
    }
    for(int i=1;i<=n;i++){
        seqv[i]=upper_bound(srtv+1,srtv+n+1,-v[i])-srtv-1;
        seq[i]=min(seqv[i],seqs[i]);
    }
    sort(seq+1,seq+n+1);
    reverse(seq+1,seq+n+1);
    pos=100000000;
    ans=0;
    for(int i=1;i<=n;i++){
        pos=min(pos-1,seq[i]);
        if(pos<=0) break;
        ans++;
    }
    cout<<ans<<'\n';
    return 0;
}

• Subtask 1: 10 / 10
• Subtask 2: 0 / 40
• Subtask 3: 0 / 50