제출 #1357746

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1357746		raineyj	Data Transfer (IOI19_transfer)	C++20	컴파일 에러	0 ms	0 KiB

transfer

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

vector<int> get_attachment(vector<int> source)
{
    vector<int> res;
    int k=0;
    for(int i=1; i<=source.size(); i++)
    {
        res.push_back(source[i-1]);
        if(source[i-1]==1) x^=i;
    }
    int count=0;
    if(source.size()==63)
    {
        for(int i=0; i<6; i++)
        {
            int val=x&1<<i;
            if(val>0)
            {
                res.push_back(1);
                count++;
            }
            else res.push_back(0);
        }
    }
    else
    {
        for(int i=0; i<8; i++)
        {
            int val=x&1<<i;
            if(val>0)
            {
                res.push_back(1);
                count++;
            }
            else res.push_back(0);
        }
    }
    res.push_back(count%2);
    return res;
}

vector<int> retrieve(vector<int> data)
{
    int n, k, count=0, x=0, y=0;
    if(data.size()>=255)
    {
        n=255;
        k=8;
    }
    else
    {
        n=63;
        k=6;
    }
    vector<int> res;
    for(int i=0; i<k; i++)
    {
        if(data[n+i]==1)
        {
            y=y&1<<i;
            count++;
        }
    }
    for(int i=1; i<=n; i++)
    {
        res.push_back(data[i-1]);
        if(data[i-1]==1) x^=i;
    }
    if(data[n+k]!=(count%2)) return res;
    else
    {
        int er=x^y;
        if(er==0) return res;
        else
        {
            res[er-1]=1-res[er-1];
            return res;
        }
    }
}

컴파일 시 표준 에러 (stderr) 메시지

transfer.cpp: In function 'std::vector<int> get_attachment(std::vector<int>)':
transfer.cpp:12:28: error: 'x' was not declared in this scope
   12 |         if(source[i-1]==1) x^=i;
      |                            ^
transfer.cpp:19:21: error: 'x' was not declared in this scope
   19 |             int val=x&1<<i;
      |                     ^
transfer.cpp:32:21: error: 'x' was not declared in this scope
   32 |             int val=x&1<<i;
      |                     ^
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)
      |     ^~~~~~~~~~~~~~