Submission #890764


Source Code Expand

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace b
{
    class Program
    {
        static void Main(string[] args)
        {
            int n = int.Parse(Console.ReadLine());
            int[] a = Console.ReadLine().Split().Select(int.Parse).ToArray();
            int ans = 0;
            for (int i = 0; i < n; i++)
            {
                if (a[a[i]] == i) ans++;
            }
            Console.WriteLine(ans/2);
        }
    }
}

Submission Info

Submission Time
Task B - Friendly Rabbits
User yu3mars
Language C# (Mono 4.6.2.0)
Score 0
Code Size 547 Byte
Status WA
Exec Time 64 ms
Memory 10968 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 0 / 200
Status
RE × 3
WA × 3
RE × 12
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 RE 27 ms 2912 KB
0_01.txt RE 24 ms 2528 KB
0_02.txt RE 24 ms 2528 KB
1_00.txt RE 24 ms 2528 KB
1_01.txt RE 64 ms 10720 KB
1_02.txt RE 64 ms 10720 KB
1_03.txt RE 64 ms 10720 KB
1_04.txt RE 63 ms 10720 KB
1_05.txt WA 63 ms 10968 KB
1_06.txt RE 64 ms 10720 KB
1_07.txt RE 64 ms 10720 KB
1_08.txt RE 40 ms 6496 KB
1_09.txt WA 56 ms 9688 KB
1_10.txt RE 53 ms 8544 KB
1_11.txt WA 29 ms 4568 KB