Submission #1280335

#	Time	Username	Problem	Language	Result	Execution time	Memory
1280335		hanguyendanghuy	Exhibition (JOI19_ho_t2)	C++20	100 / 100	39 ms	2796 KiB

joi2019_ho_t2

#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pb push_back
#define fi first
#define se second
constexpr ll MAXN=3e5+5,MAXV=3e5,MOD=1e9+7,INF=1e18;
ll n,m,i,j,p,k,ans=INF,dem,st,en,b[MAXN];
struct h{
    ll si,c;
} a[MAXN];
bool cmp(h x,h y){
    return x.c<y.c||(x.c==y.c&&x.si<y.si);
}
int main(){
    ios::sync_with_stdio(0);
    cin.tie(0);cout.tie(0);
    cin>>n>>m;
    for(i=1;i<=n;i++)
        cin>>a[i].si>>a[i].c;
    for(i=1;i<=m;i++) cin>>b[i];
    sort(a+1,a+n+1,cmp);
    sort(b+1,b+m+1);
    ll cur=m;
    for(i=n;i>=1;i--){
        if(a[i].si<=b[cur])
            cur--;
    }
    cout<<m-cur;
}

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