Submission #991612

#	Time	Username	Problem	Language	Result	Execution time	Memory
991612		Malix	Exhibition (JOI19_ho_t2)	C++14	100 / 100	92 ms	4520 KiB

joi2019_ho_t2

#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef vector<int> vi;
typedef vector<vi> vii;
typedef pair<int,int> pi;
typedef vector<pi> pii;

#define REP(i,a,b) for(int i=a;i<b;i++)
#define F first
#define S second
#define PB push_back
#define MP make_pair

ll INF=1e18+10;
ll M=1e9+7;

    
int main() {   
//ios::sync_with_stdio(0);
//cin.tie(0);
//freopen("test_input.txt", "r", stdin);
//freopen("test_output.txt", "w", stdout);
    int n,m;cin>>n>>m;
    pii a(n);
    REP(i,0,n)cin>>a[i].S>>a[i].F;
    sort(a.begin(),a.end());
    vi c(m);
    REP(i,0,m)cin>>c[i];
    sort(c.begin(),c.end());
    int ans=0;n--;
    while(m--){
        while(n>=0&&a[n].S>c[m])n--;
        if(n>=0){
            ans++;
            n--;
        }
    }
    cout<<ans;
}

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