#include <bits/stdc++.h>
#include "transfer.h"
using namespace std;
vector<int>get_attachment(vector<int>a)
{
int eo = 0;
int one = 0;
int n = a.size();
vector<int>ret;
for(int i = 0; i < n; i++){
eo ^= a[i];
if(a[i] == 1) one ^= i + 1;
ret.push_back(a[i]);
}
for(int i = 7; i >= 0; i--){
int bit = 1 << i;
if(one >= bit){
one -= bit;
ret.push_back(1);
}
else ret.push_back(0);
}
ret.push_back(eo);
return ret;
}
vector<int> retrieve(vector<int> data)
{
int n = data.size();
int back = 0;
for(int i = n - 9, j = 7; i < n - 1; i++, j--){
if(data[i]) back += 1 << j;
}
int eo = 0;
vector<int>ret;
for(int i = 0; i < n - 9; i++){
ret.push_back(data[i]);
eo ^= data[i];
}
if(eo == data.back()) return ret;
int p = 0;
for(int i = 0; i < n - 9; i++){
if(data[i]) p ^= i + 1;
}
if((p ^ back) > 0) ret[(p ^ back) - 1] = !ret[(p ^ back) - 1];
return ret;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
2 ms |
1056 KB |
WA in grader: wrong source retrieval |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
5 ms |
4368 KB |
WA in grader: wrong source retrieval |
2 |
Halted |
0 ms |
0 KB |
- |