Submission #892180

Source Code Expand

#include<bits/stdc++.h>
using namespace std;
main(){
  long long n;
  long long a[100005]={0};
  cin>>n;
  long long ans=0;
  for(int i=1;i<=n;i++){
    cin>>a[i];
    if(a[a[i]]==i){
      ans++;
    }
  }
  cout<<ans<<endl;
}

Submission Info

Submission Time
Task B - Friendly Rabbits
User reppuu77
Language C++14 (GCC 5.4.1)
Score 200
Code Size 243 Byte
Status AC
Exec Time 44 ms
Memory 1152 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 3 ms 1024 KiB
0_01.txt AC 3 ms 1024 KiB
0_02.txt AC 3 ms 1024 KiB
1_00.txt AC 3 ms 1024 KiB
1_01.txt AC 40 ms 1024 KiB
1_02.txt AC 44 ms 1024 KiB
1_03.txt AC 44 ms 1024 KiB
1_04.txt AC 37 ms 1152 KiB
1_05.txt AC 44 ms 1024 KiB
1_06.txt AC 44 ms 1024 KiB
1_07.txt AC 39 ms 1024 KiB
1_08.txt AC 18 ms 1024 KiB
1_09.txt AC 37 ms 1024 KiB
1_10.txt AC 32 ms 1024 KiB
1_11.txt AC 9 ms 1024 KiB