Submission #1349392

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Source Code Expand

import java.util.*;

class Main {
  public static void main(String args[]) {
    Scanner sc = new Scanner(System.in);
    final int n = sc.nextInt();
    List<Integer> se = new ArrayList();
    final int range = 24 * 60 / 5 + 1;
    int[] schedule = new int[range];

    for (int i = 0; i < n; i++) {
      String[] tmp = sc.next().split("-");
      int start = (Integer.parseInt(tmp[0].substring(0,2)) * 60 +
                   Integer.parseInt(tmp[0].substring(2,4))) / 5;
      int end   = (Integer.parseInt(tmp[1].substring(0,2)) * 60 +
                   Integer.parseInt(tmp[1].substring(2,4)) + 4) / 5;
      schedule[start]++;
      schedule[end]--;
    }

    int now = 0;
    for (int i = 0; i < range; i++) {
      if (now == 0 && now + schedule[i] > 0) {
        System.out.print(String.format("%02d", i*5/60));
        System.out.print(String.format("%02d-", i*5%60));
      }
      else if (now != 0 && now + schedule[i] == 0) {
        System.out.print(String.format("%02d", i*5/60));
        System.out.println(String.format("%02d", i*5%60));
      }
      now += schedule[i];
      schedule[i] = now;
    }
  }
}

Submission Info

Compile Error

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

Judge Result