Submission #4028647


Source Code Expand

using System;
using System.Linq;
using System.Collections.Generic;

public class Program{
  public static void Main(){
    var n = Int32.Parse(Console.ReadLine());
    var l = new Int32[n];
    for(var i=0; i<n; i++) l[i] = Int32.Parse(Console.ReadLine())-1;
    var j = 0;
    var c = 0;
    var tmp = 0;
    while(true){
      if(l[j]==-1){
        c = -1;
        break;
      }
      if(j==1) break;
      tmp = l[j];
      l[j] = -1;
      j = tmp;
      c++;
    }
    Console.WriteLine(c.ToString());
  }
}

Submission Info

Submission Time
Task B - Trained?
User jackusan
Language C# (Mono 4.6.2.0)
Score 200
Code Size 540 Byte
Status AC
Exec Time 57 ms
Memory 15300 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 200 / 200
Status
AC × 3
AC × 25
Set Name Test Cases
Sample s1.txt, s2.txt, s3.txt
All 01.txt, 02.txt, 03.txt, 04.txt, 05.txt, 06.txt, 07.txt, 08.txt, 09.txt, 10.txt, 11.txt, 12.txt, 13.txt, 14.txt, 15.txt, 16.txt, 17.txt, 18.txt, 19.txt, 20.txt, 21.txt, 22.txt, s1.txt, s2.txt, s3.txt
Case Name Status Exec Time Memory
01.txt AC 56 ms 13280 KB
02.txt AC 56 ms 15172 KB
03.txt AC 55 ms 13252 KB
04.txt AC 56 ms 13280 KB
05.txt AC 55 ms 13280 KB
06.txt AC 56 ms 13280 KB
07.txt AC 56 ms 11232 KB
08.txt AC 56 ms 13280 KB
09.txt AC 55 ms 11232 KB
10.txt AC 56 ms 11232 KB
11.txt AC 57 ms 13280 KB
12.txt AC 54 ms 11232 KB
13.txt AC 55 ms 11232 KB
14.txt AC 56 ms 13280 KB
15.txt AC 54 ms 13280 KB
16.txt AC 54 ms 11232 KB
17.txt AC 56 ms 11232 KB
18.txt AC 56 ms 15300 KB
19.txt AC 21 ms 9044 KB
20.txt AC 21 ms 9044 KB
21.txt AC 21 ms 9044 KB
22.txt AC 22 ms 13140 KB
s1.txt AC 21 ms 9044 KB
s2.txt AC 21 ms 9044 KB
s3.txt AC 21 ms 11092 KB