Submission #1255860

#	Time	Username	Problem	Language	Result	Execution time	Memory
1255860		vampirr	Advertisement 2 (JOI23_ho_t2)	Java	Compilation error	0 ms	0 KiB

Main

import java.util.*;

public class joi23_ho_t2 {
    
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int n = in.nextInt();
        ArrayList<int[]> v = new ArrayList<>();

        for (int i = 0; i < n; i++) {
            int a = in.nextInt();
            int b = in.nextInt();
            v.add(new int[] {a-b, b+a});
        }

        v.sort((p1, p2) -> {
            if (p1[0] != p2[0])
                return Integer.compare(p1[0], p2[0]);
            return Integer.compare(p2[1], p1[1]); // descending second
        });

        int cnt = 0;
        int current = -1;
        for (int[] p : v) {
            if (current < p[1]) {
                cnt++;
                current = p[1];
            }
        }

        System.out.println(cnt);
        in.close();
    }
}

Compilation message (stderr)

Main.java:3: error: class joi23_ho_t2 is public, should be declared in a file named joi23_ho_t2.java
public class joi23_ho_t2 {
       ^
1 error

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