Zapis wylosowanych liczb do pliku.
Ostatnio zmodyfikowano 2017-06-05 19:00
rikoooo1234 Temat założony przez niniejszego użytkownika |
Zapis wylosowanych liczb do pliku. » 2017-06-04 22:49:41 Witam. Jestem początkujący, jeśli chodzi o c++, ogarnąłem już sobie jak wylosować liczby, lecz chciałem je teraz zapisać do pliku txt. Przeszukiwałem wiele tematów, próbowałem coś zdziałać, ale jak krew w piach. Proszę o pomoc.
#include <iostream>
#include <cstdlib>
#include <time.h>
#include <stdio.h>
#include<windows.h>
using namespace std;
int liczba;
int main()
{
cout<< "Losuje 6 liczb od 1 do 49 i zapisuje do pliku" << endl;
srand(time(NULL));
for(int i=1;i<=6;i++)
{
liczba=rand()%49+1;
cout <<liczba<<endl;
}
}
getchar();getchar();
return 0;
}
|
|
Saran |
» 2017-06-04 23:06:18 |
|
carlosmay |
» 2017-06-05 01:04:52 #include <iostream>
#include <fstream>
#include <random>
#include <set>
int main()
{
std::mt19937 gen( std::random_device { }() );
std::uniform_int_distribution <> dist( 0, 49 );
std::size_t nums_size { 6 };
std::set < int > nums;
while( nums.size() < nums_size ) {
nums.insert( dist( gen ) );
}
std::ofstream fout( "test.txt" );
if( fout ) {
for( auto const & el: nums ) {
fout << el << '\n';
}
}
else {
}
} |
|
mokrowski |
» 2017-06-05 10:56:49 Wiadomo.... co kto lubi. Bez kontenera można tak: #include <iostream>
#include <algorithm>
#include <fstream>
#include <random>
#include <iterator>
#include <sstream>
#include <string>
#include <cstdlib>
int main() {
std::ofstream fout( "text.txt" );
if( !fout ) {
std::cerr << "Problem z otwarciem pliku mój Padawanie!\n";
return EXIT_FAILURE;
}
std::mt19937_64 gen( std::random_device { }() );
std::uniform_int_distribution <> dist( 0, 49 );
std::generate_n( std::ostream_iterator < std::string >( fout, "\n" ), 6,
[ & ]() { return std::to_string( dist( gen ) );
} );
return EXIT_SUCCESS;
}
|
|
rikoooo1234 Temat założony przez niniejszego użytkownika |
» 2017-06-05 18:31:15 // Copyright (C) 2007-2014 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// Under Section 7 of GPL version 3, you are granted additional
// permissions described in the GCC Runtime Library Exception, version
// 3.1, as published by the Free Software Foundation.
// You should have received a copy of the GNU General Public License and
// a copy of the GCC Runtime Library Exception along with this program;
// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
// <http://www.gnu.org/licenses/>.
/** @file bits/c++0x_warning.h
* This is an internal header file, included by other library headers.
* Do not attempt to use it directly. @headername{iosfwd}
*/
#ifndef _CXX0X_WARNING_H
#define _CXX0X_WARNING_H 1
#if __cplusplus < 201103L
#error This file requires compiler and library support for the \
ISO C++ 2011 standard. This support is currently experimental, and must be \
enabled with the -std=c++11 or -std=gnu++11 compiler options.
#endif
#endif
|
|
garlonicon |
» 2017-06-05 19:00:26 | -std=c++11 or -std=gnu++11 compiler options |
Włącz obsługę C++11. |
|
| « 1 » |