Submission #1360540

#	Time	Username	Problem	Language	Result	Execution time	Memory
1360540		hexopia	Data Transfer (IOI19_transfer)	C++20	40 / 100	24 ms	1724 KiB

transfer

#include "transfer.h"
#include <bits/stdc++.h>
using namespace std;

vector<int> get_attachment(vector<int> v) {
	int get = 0;
	for(int i = 0 ; i<255 ; ++i) if(v[i]) get ^= (i+1);
	vector<int> v2;
	int gett = 0;
	for(int i = 0 ; i<8 ; ++i) {
		v2.push_back(get%2);
		gett ^= (get%2);
		get/=2;
	}
	reverse(v2.begin(),v2.end());
	v2.push_back(gett);
	return v2;
}

vector<int> retrieve(vector<int> v) {
	int get1 = 0;
	for(int i = 255 ; i<263 ; ++i) get1^=v[i];
	if(get1 != v.back()) return vector<int>(v.begin(),v.begin()+255);
	int num = 0;
	for(int i = 255 ; i<263 ; ++i) num = (2*num+v[i]);
	for(int i = 0 ; i<255 ; ++i) if(v[i]) num^=(i+1);
	if(num) v[num-1] = 1-v[num-1];
	return vector<int>(v.begin(),v.begin()+255);
}

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: 40 / 40