#include "transfer.h"
#include<bits/stdc++.h>
using namespace std;
void up(int &pos) {
pos++;
while (__builtin_popcount(pos) > 1) pos++;
}
std::vector<int> get_attachment(std::vector<int> source) {
int T = source.size() <= 63 ? 7 : 9;
vector<int> ret(T);
int pos = 0;
for(int &val : source) {
up(pos);
for(int j = 0; j < T; j++) if (pos >> j & 1) ret[j] ^= val;
}
return ret;
}
std::vector<int> retrieve(std::vector<int> data) {
int T = data.size() - 7 <= 63 ? 7 : 9;
int n = data.size() - T;
vector<int> ret;
int pos = 0;
for(int i = 0; i < n; i++) {
up(pos);
for(int j = 0; j < T; j++) if (pos >> j & 1) data[j + n] ^= data[i];
}
int wrong = 0;
pos = 0;
for(int j = 0; j < T; j++) if (data[j + n]) wrong |= (1 << j);
for(int i = 0; i < n; i++) {
up(pos);
if (pos == wrong) data[i] ^= 1;
ret.push_back(data[i]);
}
return ret;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
3069 ms |
212 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
3062 ms |
468 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |