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[Zhang]

Hi, Now I register.
Thank 7stud!!
I just try to write a program in C++. I knew it is very easy. but I can't not figure out whai's wrong?
I want to read a very long string in a .txt file, and then split this string into many substrings (the length of each substring is 5).
My code like this:

#include <fstream>
#include<string>
#include<cctype>
#include <iomanip>
using namespace std;
int main()
{
string text;
string s[100000];
int i,j,n,L,ll;
L=5;

const char* filename="aa.txt";
ifstream inFile(filename);
if (!inFile)
{
cout<<endl<<"Failed to open file"<<filename;
return 1;
}
inFile>>text;
ll=text.length();
n=ll/L;
i=0;
while (i<n)
{
j=i*L;
s[i]=text.substr(j,L);
i++;
}
}

The input file seq.txt, look like:
1234111333344455565667777888888, so
s[0]="12341"
s[1]="11333"......

[alpha]

code tags

[kuphryn]

ll=text.size();

Kuphryn