#include <windows.h>
#include <fstream>
#include <vector>

using namespace std;

void ReadTimeValues(vector<long>& vec)
{

    FILE* f = fopen("time.txt", "r");
    if(f)
    {
        long date;
        while(feof(f))
        {
            fscanf (f, "%d\n", &date);
            vec.push_back(date);
        }
        fclose(f);
    }
}

void SaveDate(long date)
{
    FILE* f = fopen("time.txt", "a+");
    fprintf(f, "%d", date);
    fclose(f);
}

int main()
{
    SYSTEMTIME lt;
    GetLocalTime(&lt);

    long currentDate = lt.wYear * 10000 + lt.wMonth*100 + lt.wDay;
    vector<long> timeVector;
    ReadTimeValues(timeVector);

    bool dateFound = false;
    for(size_t i = 0; i < timeVector.size(); ++i)
    {
        if ( currentDate == timeVector[i] )
            dateFound = true;
    }

    if(!dateFound)
    {
        //aici faci apelurile catre functia system(...)
        //in loc de .bat file
        SaveDate(currentDate);
    }

    return 0;
}