Submission #1127987

#	Time	Username	Problem	Language	Result	Execution time	Memory
1127987		secretwood01	Exhibition (JOI19_ho_t2)	Java	100 / 100	476 ms	45492 KiB

joi2019_ho_t2

import java.util.*;
import java.io.*;
class Pic implements Comparable<Pic> {
    int s, v;
    public Pic(int s, int v) {
        this.s = s;
        this.v = v;
    }
    public int compareTo(Pic p) {
        if (v!=p.v) return Integer.compare(p.v, v);
        else return Integer.compare(p.s, s);
    }
}
public class joi2019_ho_t2 {
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        StringTokenizer st = new StringTokenizer(br.readLine());
        int N = Integer.parseInt(st.nextToken());
        int M = Integer.parseInt(st.nextToken());
        Pic [] p = new Pic[N];
        for (int i=0;i<N;i++) {
            st = new StringTokenizer(br.readLine());
            p[i] = new Pic(Integer.parseInt(st.nextToken()), Integer.parseInt(st.nextToken()));
        }
        int [] f = new int[M];
        for (int i=0;i<M;i++) {
            f[i] = Integer.parseInt(br.readLine());
        }
        br.close();
        Arrays.sort(p);
        //for (Pic x : p) System.out.println(x.v + " " + x.s);
        Arrays.sort(f);
        int ans = 0;
        int ind = M - 1;
        for (int i=0;i<N;i++) {
            if (p[i].s<=f[ind]) {
                ans++;
                ind--;
                if (ind<0) break;
            }
        }
        PrintWriter pw = new PrintWriter(System.out);
        pw.println(ans);
        pw.close();
    }
}

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