Submission #891684


Source Code Expand

_=input()
a=list(map(int,input().rsplit(" ")))
print(sum([i+1==a[j-1] for i,j in enumerate(a)])//2)

Submission Info

Submission Time
Task B - Friendly Rabbits
User ninhydrin
Language Python (3.4.3)
Score 200
Code Size 103 Byte
Status AC
Exec Time 74 ms
Memory 14008 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 23 ms 3064 KB
0_01.txt AC 22 ms 3064 KB
0_02.txt AC 22 ms 3064 KB
1_00.txt AC 22 ms 3064 KB
1_01.txt AC 73 ms 13812 KB
1_02.txt AC 74 ms 14008 KB
1_03.txt AC 74 ms 13812 KB
1_04.txt AC 73 ms 14008 KB
1_05.txt AC 73 ms 14008 KB
1_06.txt AC 73 ms 14008 KB
1_07.txt AC 71 ms 14004 KB
1_08.txt AC 41 ms 7148 KB
1_09.txt AC 64 ms 12008 KB
1_10.txt AC 56 ms 10596 KB
1_11.txt AC 30 ms 4652 KB