Submission #401925

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
401925	2021-05-11T02:27:21 Z	rainliofficial	Job Scheduling (CEOI12_jobs)	Java 11	0 / 100	1000 ms	65540 KB

jobs

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

public class jobs { 
    static int n, d, m;
    public static void main(String[] args) throws IOException{
        BufferedReader file = new BufferedReader(new InputStreamReader(System.in));
        StringTokenizer st = new StringTokenizer(file.readLine());
        n = Integer.parseInt(st.nextToken());
        d = Integer.parseInt(st.nextToken());
        m = Integer.parseInt(st.nextToken());
        int[][] arr = new int[m][2];
        st = new StringTokenizer(file.readLine());
        for (int i=0; i<m; i++){
            arr[i] = new int[] {Integer.parseInt(st.nextToken()), i+1};
        }
        Arrays.sort(arr, (a, b) -> a[0]-b[0]);
        int low = 1;
        int high = 10000;
        while (low < high){
            int mid = (low + high)/2;
            if (check(mid, arr)){
                high = mid;
            }else{
                low = mid+1;
            }
        }
        System.out.println(low);
        ArrayList<Integer>[] eachDay = new ArrayList[n+1];
        for (int i=0; i<=n; i++){
            eachDay[i] = new ArrayList<>();
        }
        int[] end = new int[low];
        for (int i=0, id = 0; i<m; i++, id++){
            if (id == low){
                id = 0;
            }
            int requestDay = arr[i][0];
            int canDo = end[id]+1;
            end[id] = Math.max(requestDay, canDo); // Only does work when the request comes
            eachDay[end[id]].add(arr[i][1]);
        }
        for (int i=1; i<=n; i++){
            if (eachDay[i] != null){
                for (int j : eachDay[i]){
                    System.out.print(j + " ");
                }
            }
            System.out.print("0");
            System.out.println();
        }
    }
    public static boolean check(int mid, int[][] arr){
        int[] end = new int[mid]; // Tracks when a machine ends its job
        int index = 0;
        int maxD = 0;
        for (int i=0; i<m; i++){
            if (index == mid){
                index = 0;
            }
            if (end[index]+1 > arr[i][0]){
                maxD = Math.max(maxD, end[index]+1-arr[i][0]);
                end[index]++;
            }else{
                end[index] = arr[i][0]; // No delay
            }
            index++;
        }
        return maxD <= d;
    }
}

Compilation message

Note: jobs.java uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.

Subtask #1

0 / 100.0

#	Verdict	Execution time	Memory	Grader output
1	Execution timed out	1087 ms	22048 KB	Time limit exceeded
2	Execution timed out	1093 ms	21912 KB	Time limit exceeded
3	Execution timed out	1094 ms	22480 KB	Time limit exceeded
4	Execution timed out	1043 ms	22012 KB	Time limit exceeded
5	Execution timed out	1083 ms	21792 KB	Time limit exceeded
6	Execution timed out	1089 ms	22120 KB	Time limit exceeded
7	Execution timed out	1103 ms	21852 KB	Time limit exceeded
8	Execution timed out	1081 ms	21876 KB	Time limit exceeded
9	Execution timed out	1097 ms	21744 KB	Time limit exceeded
10	Execution timed out	1095 ms	21648 KB	Time limit exceeded
11	Execution timed out	1095 ms	21792 KB	Time limit exceeded
12	Execution timed out	1095 ms	29192 KB	Time limit exceeded
13	Execution timed out	1045 ms	40200 KB	Time limit exceeded
14	Execution timed out	1095 ms	47616 KB	Time limit exceeded
15	Execution timed out	1096 ms	51472 KB	Time limit exceeded
16	Execution timed out	1080 ms	57120 KB	Time limit exceeded
17	Runtime error	643 ms	65540 KB	Execution killed with signal 9
18	Runtime error	525 ms	65536 KB	Execution killed with signal 9
19	Runtime error	525 ms	65540 KB	Execution killed with signal 9
20	Runtime error	639 ms	65540 KB	Execution killed with signal 9