初学者请问从文本文件中读取数据

菜鸟请教从文本文件中读取数据
data1.txt

1.0341   2.0641   3.0671   4.0861   5.2435   ...
6.7544   7.2424   8.3353   9.3511   10.1134   ...

---------------------------

要读取data1.txt中数据到两个数组x(n),y(n)中(如n=5),使第一行为x的值,第二行为y的值,如下:
x[1]=1.0341   x[2]=2.0641   x[3]=3.0671   x[4]=4.0861   x[5]=5.2435   ...
y[1]=6.7544   y[2]=7.2424   y[3]=8.3353   y[4]=9.3511   y[5]=10.1134   ...

请帮忙补充一下省略号中的代码或者按你自己习惯写法.
还有这个data1.txt文件正确放在哪里?我放在同read.cpp主文件同一个project目录下,编译时说找不到这个文本文件,路径发生错误.   我是刚接触c++,请大家指教,谢谢!


read.cpp

#include   <iostream>
#include   <fstream>
#include   <string>
using   namespace   std;

int   main   ()   {
    float   x(5),y(5);
    string   line;
    ifstream   myfile   ( "data1.txt ");
    if   (myfile.is_open())
    {
        .....


        myfile.close();
    }
    else   cout   < <   "Unable   to   open   file ";  

    cout < <   x[1]   < <   endl;
    return   0;
}

------解决方案--------------------
#include <cstdlib>
#include <fstream>
#include <iostream>

using namespace std;

int main(int argc, char* argv[])
{
float x[5],y[5];
ifstream myfile ( "data.txt ");

int i;
if(!myfile.fail())
{
for(i=0; i <5; i++) myfile> > x[i];
for(i=0; i <5; i++) myfile> > y[i];

for(i=0; i <5; i++) cout < <x[i] < < "\t ";
cout < <endl;
for(i=0; i <5; i++) cout < <y[i] < < "\t ";
cout < <endl;
}
else cout < < "Unable to open file ";

system( "PAUSE ");
return 0;
}

------解决方案--------------------

#include <iostream>
#include <fstream>
#include <sstream>
#include <string>
using namespace std;

int main () {
float x[2][5];
string line;
ifstream myfile;
myfile.open( "d:\\data1.txt ", fstream::in);

int i=0, j=0;
if (myfile.is_open())
{
string line;

while(getline(myfile, line))
{
string word;
istringstream stream(line);
while(stream> > word)
{
char * temp = (char *)word.c_str();;
x[j][i] = (float)atof(temp);
i++;
}
j++;
}
myfile.close();
}
else cout < < "Unable to open file ";


for(j=0; j <2; j++)
{
for(i=0; i <5; i++)
{
cout < <x[j][i] < < " ";
}
cout < <endl;
}


system( "PAUSE ");
return EXIT_SUCCESS;
}


---------------------
还有点小问题.
------解决方案--------------------