Submission #745684

#	Time	Username	Problem	Language	Result	Execution time	Memory
745684		rahulverma	Kocka (COCI18_kocka)	Java	70 / 70	785 ms	58120 KiB

kocka

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

public class kocka {
    static final int N = 1_00_005, M = 2_010;
    public static void main(String[] args) throws IOException {
    	BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        int n = Integer.parseInt(br.readLine());
        int ok = 0;

        int[][] ans = new int[4][N];
        HashSet<Integer>[] st = new HashSet[N];

        for (int i = 0; i < N; i++) {
            st[i] = new HashSet<>();
        }
    	StringTokenizer ts = new StringTokenizer(br.readLine());
        for (int i = 1; i <= n; i++) {
            int x = Integer.parseInt(ts.nextToken());

            if (x == -1)
                x = n + 1;

            ans[0][i] = x + 1;
            st[x + 1].add(i);
        }
        ts = new StringTokenizer(br.readLine());
        for (int i = 1; i <= n; i++) {
            int x = Integer.parseInt(ts.nextToken());

            if (x == -1)
                x = n + 1;

            if (n - x != -1 && n - x < ans[0][i])
                ok = 1;

            ans[1][i] = n - x;

            if (n - x == -1)
                continue;

            st[n - x].add(i);
        }
        ts = new StringTokenizer(br.readLine());
        for (int i = 1; i <= n; i++) {
            int x = Integer.parseInt(ts.nextToken());

            if (x == -1)
                x = n + 1;

            if (st[i].size() == 0)
                continue;

            if (Collections.min(st[i]) <= x)
                ok = 1;

            ans[2][i] = x;
        }
        ts = new StringTokenizer(br.readLine());
        for (int i = 1; i <= n; i++) {
            int x = Integer.parseInt(ts.nextToken());

            if (x == -1)
                x = n + 1;

            if (st[i].size() == 0)
                continue;

            if (Collections.max(st[i]) > n - x)
                ok = 1;
        }
        PrintWriter pw = new PrintWriter(System.out);
        if (ok == 1)
            pw.println("NE");
        else
            pw.println("DA");

        pw.close();
    }
}

Compilation message (stderr)

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

• Subtask 1: 14 / 14
• Subtask 2: 14 / 14
• Subtask 3: 14 / 14
• Subtask 4: 14 / 14
• Subtask 5: 14 / 14