Submission #7065577

Source Code Expand

n = int(input())
num_list = [ int(v)-1 for v in input().split() ]

ans = 0
for i in range(n):
  if num_list[num_list[i]] == i:
    ans += 1
print(ans//2)

Submission Info

Submission Time
Task B - Friendly Rabbits
User ASTR1104
Language PyPy3 (2.4.0)
Score 200
Code Size 160 Byte
Status AC
Exec Time 223 ms
Memory 53804 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 169 ms 38384 KB
0_01.txt AC 167 ms 38256 KB
0_02.txt AC 174 ms 38384 KB
1_00.txt AC 168 ms 38256 KB
1_01.txt AC 223 ms 53804 KB
1_02.txt AC 212 ms 52780 KB
1_03.txt AC 206 ms 52908 KB
1_04.txt AC 208 ms 52908 KB
1_05.txt AC 209 ms 52912 KB
1_06.txt AC 209 ms 52912 KB
1_07.txt AC 206 ms 52780 KB
1_08.txt AC 181 ms 43632 KB
1_09.txt AC 204 ms 51184 KB
1_10.txt AC 200 ms 48880 KB
1_11.txt AC 182 ms 40412 KB