Submission #891679

Source Code Expand

N=int(raw_input())
A=map(int,raw_input().split())

ans=0
for i,a in enumerate(A):
    if A[a-1]-1==i:
        ans+=1
print ans/2

Submission Info

Submission Time
Task B - Friendly Rabbits
User yaoshimax
Language Python (2.7.6)
Score 200
Code Size 139 Byte
Status AC
Exec Time 85 ms
Memory 11304 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 15 ms 2568 KB
0_01.txt AC 15 ms 2568 KB
0_02.txt AC 15 ms 2568 KB
1_00.txt AC 15 ms 2568 KB
1_01.txt AC 85 ms 11304 KB
1_02.txt AC 76 ms 11304 KB
1_03.txt AC 78 ms 11304 KB
1_04.txt AC 75 ms 11304 KB
1_05.txt AC 78 ms 11304 KB
1_06.txt AC 76 ms 11304 KB
1_07.txt AC 76 ms 11304 KB
1_08.txt AC 37 ms 5780 KB
1_09.txt AC 66 ms 9744 KB
1_10.txt AC 55 ms 8664 KB
1_11.txt AC 24 ms 3972 KB