Submission #895091

Source Code Expand

import java.util.Scanner;
import java.util.ArrayList;

public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);

		int N = sc.nextInt();
		ArrayList<Integer> list = new ArrayList<Integer>();

		for(int i = 0; i < N; i++) {
			list.add(sc.nextInt());
		}

		int count = 0;
		for(int i=0; i<list.size(); i++) {
			int love = list.get(i);
			if((i + 1) == (list.get(love - 1))) count++;
		}

		System.out.println(count/2);
	}
}

Submission Info

Submission Time
Task B - Friendly Rabbits
User rinkou
Language Java8 (OpenJDK 1.8.0)
Score 200
Code Size 490 Byte
Status AC
Exec Time 513 ms
Memory 48280 KiB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 200 / 200
Status
AC × 3
AC × 15
Set Name Test Cases
Sample 0_00.txt, 0_01.txt, 0_02.txt
All 0_00.txt, 0_01.txt, 0_02.txt, 1_00.txt, 1_01.txt, 1_02.txt, 1_03.txt, 1_04.txt, 1_05.txt, 1_06.txt, 1_07.txt, 1_08.txt, 1_09.txt, 1_10.txt, 1_11.txt
Case Name Status Exec Time Memory
0_00.txt AC 129 ms 9544 KiB
0_01.txt AC 128 ms 9556 KiB
0_02.txt AC 138 ms 9676 KiB
1_00.txt AC 125 ms 9808 KiB
1_01.txt AC 513 ms 33680 KiB
1_02.txt AC 503 ms 48280 KiB
1_03.txt AC 496 ms 33696 KiB
1_04.txt AC 499 ms 34016 KiB
1_05.txt AC 506 ms 33464 KiB
1_06.txt AC 495 ms 34672 KiB
1_07.txt AC 498 ms 33732 KiB
1_08.txt AC 369 ms 29236 KiB
1_09.txt AC 483 ms 33500 KiB
1_10.txt AC 447 ms 32316 KiB
1_11.txt AC 325 ms 27036 KiB