Submission #247443

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
247443	2020-07-11 11:55:46	stoyan_malinin	Data Transfer (IOI19_transfer)	C++14	68 / 100	98 ms	2764 KiB

transfer

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#include "transfer.h"
//#include "grader.cpp"
#include<iostream>
#include<vector>
using namespace std;
const int BITCnt = 15;
vector<int> get_attachment(vector<int> source)
{
    int val1 = 0, val2 = 0;
    for(int i = 0;i<source.size();i++)
    {
        if(source[i]==1)
        {
            val1 ^= 1;
            val2 ^= i + 1;
        }
    }
    vector <int> out;
    for(int bit = 0;bit<BITCnt;bit++) out.push_back(((val2>>bit)&1));
    out.push_back(val1);
    return out;
}
vector<int> retrieve(vector<int> data)
 
 
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Compilation message (stderr)

transfer.cpp: In function 'std::vector<int> get_attachment(std::vector<int>)':
transfer.cpp:14:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i = 0;i<source.size();i++)
                   ~^~~~~~~~~~~~~~
transfer.cpp: In function 'std::vector<int> retrieve(std::vector<int>)':
transfer.cpp:37:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i = 0;i<info.size();i++)
                   ~^~~~~~~~~~~~
transfer.cpp:46:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i = (data.size()-(BITCnt+1));i<data.size()-1;i++) expectedVal2 += (data[i]<<(i-(data.size()-(BITCnt+1))));
                                          ~^~~~~~~~~~~~~~
transfer.cpp:50:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i = 0;i<info.size();i++)
                   ~^~~~~~~~~~~~
transfer.cpp:58:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^

• Subtask 1: 36 / 60
• Subtask 2: 32 / 40