Submission #307868

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
307868	2020-09-29 12:42:09	joylintp	Data Transfer (IOI19_transfer)	C++17	100 / 100	385 ms	2756 KiB

transfer

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#include <bits/stdc++.h>
#include "transfer.h"
using namespace std;
vector<int> get_attachment(vector<int> source)
{
    int N = source.size(), lst = 0;
  vector<int> ret;
    for (int i = 0; i < __lg(N + 1); i++)
    {
        int t = 0;
        for (int j = 0; j < N; j++)
            if ((j + 1) & (1 << i))
                t ^= source[j];
        ret.push_back(t);
        lst ^= t;
    }
    ret.push_back(lst);
    return ret;
}
vector<int> retrieve(vector<int> data)
{
  int N = (data.size() == 70 ? 63 : 255), K = data.size() - N;
  vector<int> ret;
  for (int i = 0; i < N; i++)
        ret.push_back(data[i]);
    int arr[8] = {};
    for (int i = 0; i < __lg(N + 1); i++)
 
 
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• Subtask 1: 60 / 60
• Subtask 2: 40 / 40