Submission #3597854
Source Code Expand
inf=(10**9)+7 N=int(input().strip()) a=list(map(int, input().split())) a.sort() fl=True fl=True if N%2==0: for i in range(0,N,2): if a[i]!=i+1 or a[i+1]!=i+1: fl=False break else: if a[0]!=0: fl=False for i in range(1,N,2): if a[i]!=i+1 or a[i+1]!=i+1: fl=False break if fl: print((2**(N//2))%inf) else: print(0)
Submission Info
Submission Time | |
---|---|
Task | C - Lining Up |
User | nphys |
Language | Python (3.4.3) |
Score | 300 |
Code Size | 433 Byte |
Status | AC |
Exec Time | 101 ms |
Memory | 14008 KB |
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 300 / 300 | ||||
Status |
|
|
Set Name | Test Cases |
---|---|
Sample | sample_01.txt, sample_02.txt, sample_03.txt |
All | sample_01.txt, sample_02.txt, sample_03.txt, subtask_1_invalid_01.txt, subtask_1_invalid_02.txt, subtask_1_max_01.txt, subtask_1_max_02.txt, subtask_1_max_valid_01.txt, subtask_1_max_valid_02.txt, subtask_1_min_valid_01.txt, subtask_1_rand_01.txt, subtask_1_rand_02.txt, subtask_1_valid_01.txt, subtask_1_valid_02.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
sample_01.txt | AC | 18 ms | 3064 KB |
sample_02.txt | AC | 18 ms | 3064 KB |
sample_03.txt | AC | 18 ms | 3064 KB |
subtask_1_invalid_01.txt | AC | 68 ms | 12212 KB |
subtask_1_invalid_02.txt | AC | 27 ms | 4852 KB |
subtask_1_max_01.txt | AC | 79 ms | 13880 KB |
subtask_1_max_02.txt | AC | 80 ms | 13812 KB |
subtask_1_max_valid_01.txt | AC | 101 ms | 14008 KB |
subtask_1_max_valid_02.txt | AC | 98 ms | 14008 KB |
subtask_1_min_valid_01.txt | AC | 18 ms | 3064 KB |
subtask_1_rand_01.txt | AC | 53 ms | 9884 KB |
subtask_1_rand_02.txt | AC | 74 ms | 13352 KB |
subtask_1_valid_01.txt | AC | 58 ms | 8904 KB |
subtask_1_valid_02.txt | AC | 32 ms | 5204 KB |