Submission #1310696

#	Time	Username	Problem	Language	Result	Execution time	Memory
1310696		takoshanava	Data Transfer (IOI19_transfer)	C++20	0 / 100	2 ms	568 KiB

transfer

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

vector<int> get_attachment(vector<int> source){
    int x = 0, sz = source.size();
    for(int i = 0; i < sz; i++){
        if(source[i]) x ^= i;
    }
    vector<int> vec;
    int par = 0;
    for(int i = 0; i < 8; i++){
        if(x & (1 << i)) par ^= 1;
    }
    for(int i = 0; i < 8; i++){
        vec.pb((x&(1<<i)));
    }
    vec.pb(par);
    return(vec);
}

vector<int> retrieve(vector<int> data){
    int x = 0, num = 0;
    for(int i = 255; i < 263; i++){
        if(data[i] == 1) x++;
        num += 1 << (8 - i - 256); 
    }
    vector<int> ans;
    if(x != data[263]){
        for(int i = 0; i < 255; i++) ans.pb(data[i]);
    }else{
        int val = 0;
        for(int i = 0; i < 255; i++){
            val ^= i;
        }
        int idx = val ^ num;
        data[idx] ^= 1;
        for(int i = 0; i < 255; i++) ans.pb(data[i]);
    }
    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