Submission #891802
Source Code Expand
#include <cstdio> #include <cstring> int n; int a[123456]; int main() { scanf("%d",&n); for (int i = 0; i < n; ++i) { scanf("%d", a + i); --a[i]; } int answer = 0; for (int i = 0; i < n; ++i) { if (a[a[i]] == i) { ++answer; } } printf("%d\n",answer / 2); }
Submission Info
Submission Time | |
---|---|
Task | B - Friendly Rabbits |
User | platypus |
Language | C++14 (GCC 5.4.1) |
Score | 200 |
Code Size | 305 Byte |
Status | AC |
Exec Time | 11 ms |
Memory | 512 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:10:16: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ ./Main.cpp:13:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", a + i); ^
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 200 / 200 | ||||
Status |
|
|
Set Name | Test Cases |
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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 | 128 KB |
0_01.txt | AC | 1 ms | 128 KB |
0_02.txt | AC | 1 ms | 128 KB |
1_00.txt | AC | 1 ms | 128 KB |
1_01.txt | AC | 11 ms | 512 KB |
1_02.txt | AC | 11 ms | 512 KB |
1_03.txt | AC | 11 ms | 512 KB |
1_04.txt | AC | 11 ms | 512 KB |
1_05.txt | AC | 11 ms | 512 KB |
1_06.txt | AC | 11 ms | 512 KB |
1_07.txt | AC | 11 ms | 512 KB |
1_08.txt | AC | 5 ms | 256 KB |
1_09.txt | AC | 9 ms | 512 KB |
1_10.txt | AC | 8 ms | 384 KB |
1_11.txt | AC | 3 ms | 256 KB |