제출 #1308921

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1308921		jungle15	Data Transfer (IOI19_transfer)	C++17	100 / 100	86 ms	1728 KiB

transfer

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

vector<int> get_attachment(vector<int> v)
{
	int x = 0, y = 0;
	vector<int> a;
	for (int i = 0; i < v.size(); ++i)
		if (v[i])
			x ^= i + 1;
	for (int i = 0; i < __lg(v.size() + 1); ++i)
		a.push_back((x >> i) & 1), y ^= (x >> i) & 1;
	a.push_back(y);
	return a;
}

vector<int> retrieve(vector<int> v)
{
	int x = 0, xx = 0, y = 0, n = v.size() < 99 ? 63 : 255;
	for (int i = 0; i < n; ++i)
		if (v[i])
			x ^= i + 1;
	for (int i = 0; i < __lg(n + 1); ++i)
		if (v[n + i])
			xx ^= 1 << i, y ^= 1;
	if (v.back() == y && x != xx)
		v[(x ^ xx) - 1] ^= 1;
	return vector<int>(v.begin(), v.begin() + n);
}

컴파일 시 표준 에러 (stderr) 메시지

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: 60 / 60
• Subtask 2: 40 / 40