Submission #1308902

#	Time	Username	Problem	Language	Result	Execution time	Memory
1308902		thnhann	Data Transfer (IOI19_transfer)	C++20	0 / 100	5 ms	1720 KiB

transfer

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


vector<int> get_attachment(vector<int> source) {
    vector<int>bit;
    int total = 0;
    for(int i=0;i<=255;i++)
        total = total ^ (i + 1);

    for(int i=0;i<6;i++)
        if((total >> i)&1)
            bit.push_back(1);
        else bit.push_back(0);
    total = 0;

    for(int i=0;i<6;i++)
        if(bit[i] == 1)
            total = total ^ (i + 1);

    for(int i=0;i<3;i++)
        if((total >> i)&1)
            bit.push_back(1);
        else bit.push_back(0);
    return bit;
}

vector<int> retrieve(vector<int> data) {
    int total1 = 0;
    int val2=0;
    int total2 = 0;
    int val3 = 0;
    vector<int>ans;

    for(int i=0;i<=255;i++)
        if(data[i] == 1)
            total1 ^= (i + 1);

    for(int i=256;i<=256 + 6 - 1;i++)
        if(data[i] == 1)
            total2 ^= (i - 255);

    for(int i=256;i<=256 + 6 - 1;i++)
        if(data[i] == 1)
            val2 ^= (1<<(i-256));

    for(int i=256 + 6;i<=256 + 9 - 1;i++)
        if(data[i] == 1)
            val3 ^= (1<<(i-256-6));
    for(int i=0;i<=255;i++)
            ans.push_back(data[i]);


    if(val3 == total2 && total1 != val2)
    {
        int pos = total1 ^ val2;
        ans[pos - 1] = (ans[pos - 1]^1);
        total1 = val2;
    }
    return ans;
}

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