Järjestys

public class Jarjestys {

	public static void main(String[] args) {

		IO reader = new IO();
		int loop = reader.nextInt();

		int[] numbers = new int[loop];
		int i = 0;
		for (i=0;i<loop;i++) {
			numbers[i] = reader.nextInt() - 1;
		}
		int[] sortOrder = sortArray(numbers);
		int maara = 0;
		for (int num : sortOrder)
			if (num > 0)
				maara++;
		reader.println(maara);
		StringBuilder sb = new StringBuilder();
		for (int num : sortOrder)
			if (num > 0)
				sb.append(num + 1).append(" ");
		reader.println(sb.toString());
		reader.close();

	}

	private static int[] sortArray(int[] array) {
		int[] indexArray = new int[array.length];
		int[] sortOrder = new int[5*array.length];
		int i, j=0, k, index;
		int value = 1;
		for (i=0;i<array.length;i++) {
			indexArray[array[i]] = i;
		}
		for (i=array.length-1;i>0;i--) {
			index = indexArray[i];
			for (k=0;sortOrder[k] != 0;k++) {
				if (sortOrder[k] >= index) {
					index = sortOrder[k] - index;
				}
			}
			if (index == array.length - value) {
				value++;
				continue;
			}

			sortOrder[j++] = index;
			sortOrder[j++] = array.length - value;
			turn(array, index);
			turn(array, array.length - value++);
		}
		return sortOrder;
	}

	private static void turn(int[] array, int index) {
		int[] orgArray = array.clone();
		for (int i=0;i<array.length;i++) {
			if (index - i >= 0)
				array[i] = orgArray[index-i];
			else
				break;
		}
	}
}

Test 1

Group: 1

Verdict: ACCEPTED

Test 2

Group: 2

Verdict: WRONG ANSWER

Test 3

Group: 3

Verdict: TIME LIMIT EXCEEDED