Submission #1357999

Source Code Expand

#include <bits/stdc++.h>

using namespace std;
int N;
int a[100001];
int ans;
int main() {
  cin >> N;

  for(int i = 1; i <= N; i++) cin >> a[i];

  for(int i = 1; i <= N; i++) {
    if(a[a[i]] == i)ans++;
  }
  cout << ans / 2 <<endl;
}

Submission Info

Submission Time
Task B - Friendly Rabbits
User shossie1016
Language C++14 (GCC 5.4.1)
Score 200
Code Size 259 Byte
Status AC
Exec Time 38 ms
Memory 640 KB

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 1 ms 256 KB
0_01.txt AC 1 ms 256 KB
0_02.txt AC 1 ms 256 KB
1_00.txt AC 1 ms 256 KB
1_01.txt AC 36 ms 640 KB
1_02.txt AC 36 ms 640 KB
1_03.txt AC 36 ms 640 KB
1_04.txt AC 36 ms 640 KB
1_05.txt AC 38 ms 640 KB
1_06.txt AC 36 ms 640 KB
1_07.txt AC 36 ms 640 KB
1_08.txt AC 14 ms 384 KB
1_09.txt AC 29 ms 512 KB
1_10.txt AC 25 ms 512 KB
1_11.txt AC 6 ms 256 KB