Submission #1130592

#	Time	Username	Problem	Language	Result	Execution time	Memory
1130592		QuantumPi	Carnival (CEOI14_carnival)	Java	Compilation error	0 ms	0 KiB

carnival

import java.io.*;
import java.util.*;

public class Carnival2 {
    public static String[][] queries;
    public static void main(String[] args) throws IOException {
        BufferedReader fin = new BufferedReader(new InputStreamReader(System.in));
        //BufferedReader fin = new BufferedReader(new FileReader("test.in"));
		PrintWriter fout = new PrintWriter(System.out);

        int n = Integer.parseInt(fin.readLine());
        queries = new String[n][n];
        for (int i=0; i<n; i++) {
            StringJoiner joiner = new StringJoiner(" ");
            for (int j=i; j<n; j++) {
                joiner.add(j+1+"");
                queries[i][j] = joiner.toString();
            }
        }

        int[] nums = new int[n];
        int currentNum = 1;
        nums[0] = currentNum++;
        for (int i=1; i<n; i++) {
            System.out.println(i+" "+queries[0][i-1]);
            int a = Integer.parseInt(fin.readLine());
            System.out.println(i+1+" "+queries[0][i]);
            int b = Integer.parseInt(fin.readLine());
            if (a < b) {
                nums[i] = currentNum++;
            }
            else {
                int low = 0;
                int high = i-1;
                while (low < high) {
                    int mid = (low+high+1)/2;
                    System.out.println(i-mid+" "+queries[mid][i-1]);
                    int na = Integer.parseInt(fin.readLine());
                    System.out.println(i+1-mid+" "+queries[mid][i]);
                    int nb = Integer.parseInt(fin.readLine());
                    if (na == nb) {
                        low = mid;
                    }
                    else {
                        high = mid-1;
                    }
                }
                nums[i] = nums[low];
            }
        }
        StringJoiner joiner = new StringJoiner(" ");
        joiner.add(0+"");
        for (int i=0; i<n; i++) {
            joiner.add(nums[i]+"");
        }
        System.out.println(joiner);

        fin.close();
        fout.close();
    }
}

Compilation message (stderr)

carnival.java:4: error: class Carnival2 is public, should be declared in a file named Carnival2.java
public class Carnival2 {
       ^
1 error

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