Submission #1332171

#	Time	Username	Problem	Language	Result	Execution time	Memory
1332171		andreim	Data Transfer (IOI19_transfer)	C++20	0 / 100	4 ms	1724 KiB

transfer

#include "transfer.h"
#include <iostream>
using namespace std;

vector<int> get_attachment(vector<int> source)
{
	int N_source = (int)source.size();
	vector<int> oneBits;
	for (int i = 0; i < N_source; i++)
		if (source[i] == 1)
			oneBits.push_back(i);

	int xorRes = 0;
	for (int i = 0; i < (int)oneBits.size(); i++)
		xorRes ^= oneBits[i];

	vector<int> res;
    int tailleAjout = (N_source == 63) ? 6 : 8; 
    for (int i = 0; i < tailleAjout; i++)
        res.push_back((xorRes >> i) & 1);
    return res;
}

vector<int> retrieve(vector<int> data)
{
	int N_source = ((int)data.size() <= 70) ? 63 : 255;
	vector<int> oneBits;
	for (int i = 0; i < (int)data.size(); i++)
		if (data[i] == 1)
			oneBits.push_back(i);

	int xorRes = 0;
	for (int i = 0; i < (int)oneBits.size(); i++)
		xorRes = xorRes ^ oneBits[i];
	
	if (xorRes >= 1)
        data[xorRes - 1] = (data[xorRes - 1] + 1) % 2;

	vector<int> res;
	for (int i = 0; i < N_source; i++)
		res.push_back(data[i]);
	return res;
}

Compilation message (stderr)

grader.cpp: In instantiation of 'void shuffle(std::vector<T>&) [with T = Scenario]':
grader.cpp:200:10:   required from here
grader.cpp:28:23: warning: 'void std::random_shuffle(_RAIter, _RAIter) [with _RAIter = __gnu_cxx::__normal_iterator<Scenario*, vector<Scenario> >]' is deprecated: use 'std::shuffle' instead [-Wdeprecated-declarations]
   28 |         random_shuffle(v.begin(), v.end());
      |         ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/13/algorithm:61,
                 from grader.cpp:8:
/usr/include/c++/13/bits/stl_algo.h:4581:5: note: declared here
 4581 |     random_shuffle(_RandomAccessIterator __first, _RandomAccessIterator __last)
      |     ^~~~~~~~~~~~~~

• Subtask 1: 0 / 60
• Subtask 2: 0 / 40