Submission #1021474

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
1021474	2024-07-12T18:41:26 Z	QuantumPi	Carnival (CEOI14_carnival)	Java 11	Compilation error	0 ms	0 KB

carnival

import java.io.*;
import java.util.*;
 
public class Carnival {
    public static Scanner fin = new Scanner(System.in);
    public static void main(String[] args) {

        int n = fin.nextInt();
        int previousTotal = 0;
        int previousNum = 0;
        int[] nums = new int[n];
        for (int i=0; i<n; i++) {
            String s = (i+1)+"";
            for (int j=0; j<=i; j++) {
                s += " "+(j+1);
            }
            System.out.println(s);
            int numCostumes = fin.nextInt();
            if (numCostumes == previousTotal) {
                int low = 0;
                int high = i-1;
                while (low < high) {
                    int mid = (low+high)/2;
                    if (works(low+1, mid+1, i+1)) {
                        high = mid;
                    }
                    else {
                        low = mid+1;
                    }
                }
                nums[i] = nums[low];
            }
            else {
                nums[i] = ++previousNum;
            }
            previousTotal = numCostumes;
        }
        String s = "0";
        for (int i=0; i<n; i++) {
            s += " "+nums[i];
        }
        System.out.println(s);

        fin.close();
    }
    public static boolean works(int low, int mid, int num) {
        String s = (mid-low+1)+"";
        for (int j=low; j<=mid; j++) {
            s += " "+j;
        }
        System.out.println(s);
        int a = fin.nextInt();
        s += " "+num;
        System.out.println(s);
        int b = fin.nextInt();
        if (a == b) {
            return true;
        }
        return false;
    }
}

Compilation message

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