#include "transfer.h"
std::vector<int> get_attachment(std::vector<int> source) {
int xorsum = 0;
std::vector<int> v;
for (int i = 0; i < (int)source.size(); ++i)
if (source[i]) xorsum ^= i + 1;
for (int i = 0; i < 8; ++i) v.push_back((xorsum>>i)&1);
v.push_back(__builtin_parity(xorsum));
return v;
}
std::vector<int> retrieve(std::vector<int> data) {
int xorsum = 0;
int n = (int)data.size() - 9;
for (int i = 0; i < n; ++i)
if (data[i]) xorsum ^= i + 1;
int xordat = 0, dat_par = data.back();
for (int i = n; i < n + 8; ++i)
xordat ^= (data[i]<<(i-n));
while ((int)data.size() > n) data.pop_back();
if (__builtin_parity(xordat) != dat_par)
return data;
int i = xorsum ^ xordat;
if(i)
data[i-1] ^= 1;
return data;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Partially correct |
1 ms |
796 KB |
Partially correct |
| 2 |
Partially correct |
1 ms |
800 KB |
Partially correct |
| 3 |
Partially correct |
1 ms |
876 KB |
Partially correct |
| 4 |
Partially correct |
2 ms |
800 KB |
Partially correct |
| 5 |
Partially correct |
2 ms |
800 KB |
Partially correct |
| 6 |
Partially correct |
2 ms |
788 KB |
Partially correct |
| 7 |
Partially correct |
1 ms |
800 KB |
Partially correct |
| 8 |
Partially correct |
1 ms |
800 KB |
Partially correct |
| 9 |
Partially correct |
2 ms |
788 KB |
Partially correct |
| 10 |
Partially correct |
2 ms |
800 KB |
Partially correct |
| 11 |
Partially correct |
2 ms |
792 KB |
Partially correct |
| 12 |
Partially correct |
1 ms |
800 KB |
Partially correct |
| 13 |
Partially correct |
2 ms |
792 KB |
Partially correct |
| 14 |
Partially correct |
2 ms |
780 KB |
Partially correct |
| 15 |
Partially correct |
2 ms |
880 KB |
Partially correct |
| 16 |
Partially correct |
2 ms |
784 KB |
Partially correct |
| 17 |
Partially correct |
2 ms |
800 KB |
Partially correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
31 ms |
2512 KB |
Output is correct |
| 2 |
Correct |
33 ms |
2760 KB |
Output is correct |
| 3 |
Correct |
30 ms |
2508 KB |
Output is correct |
| 4 |
Correct |
36 ms |
2508 KB |
Output is correct |
| 5 |
Correct |
58 ms |
2508 KB |
Output is correct |
| 6 |
Correct |
48 ms |
2508 KB |
Output is correct |
| 7 |
Correct |
40 ms |
2524 KB |
Output is correct |
| 8 |
Correct |
35 ms |
2508 KB |
Output is correct |
| 9 |
Correct |
26 ms |
2512 KB |
Output is correct |
| 10 |
Correct |
28 ms |
2740 KB |
Output is correct |
| 11 |
Correct |
24 ms |
2512 KB |
Output is correct |
| 12 |
Correct |
27 ms |
2512 KB |
Output is correct |
| 13 |
Correct |
28 ms |
2516 KB |
Output is correct |
| 14 |
Correct |
34 ms |
2516 KB |
Output is correct |
| 15 |
Correct |
36 ms |
2516 KB |
Output is correct |
| 16 |
Correct |
42 ms |
2516 KB |
Output is correct |
| 17 |
Correct |
37 ms |
2416 KB |
Output is correct |
| 18 |
Correct |
33 ms |
2508 KB |
Output is correct |
| 19 |
Correct |
31 ms |
2504 KB |
Output is correct |
