Submission #1310881

#	Time	Username	Problem	Language	Result	Execution time	Memory
1310881		nataliaa	Data Transfer (IOI19_transfer)	C++20	0 / 100	7 ms	3252 KiB

transfer

#include "transfer.h"
#include<bits/stdc++.h>
using namespace std;
vector<int> get_attachment(vector<int> v) {
    vector<int> v1;
    int x = 0;
    int n = v.size();
    for(int i = 0; i < n; i++) {
        if(v[i]==1) x^=i;
    }
    vector<int> v2;
    int cnt = 0;
    for(int i = 0; i < 8; i++) {
        cnt+=x%2;
        v.push_back(x%2);
        x/=2;
    }
    v.push_back(cnt%2);
    return v;
}
vector<int> retrieve(vector<int> v) {
    int n = v.size()-9;
    int x = 0;
    for(int i = 0; i < n; i++) {
        if(v[i]==1) x^=i;
    }
    int x1=0, k=1, cnt=0;
    for(int i = 0; i < 8; i++){
        cnt+=v[i+n];
        x1+=k*v[i+n];
        k*=2;
    }
    cnt%=2;
    vector<int> ans(v.begin(), v.begin() + n);
    if(x1==x){
        return ans;
    }
    if(cnt!=v[n+8]) return ans;
    x^=x1;
    if(x<n) ans[x] = 1-ans[x];
    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