string array into multiple string arrays

#include <iostream>
#include <string>
#include <fstream>

using namespace std;

int main (int argc, const char* argv[])
{
    // Read the lines
    string lines[70];
    fstream file("C:\\Temp\\file.txt");
    string line;
    int index = 0;
    while(getline(file, line) && index < 70)
    {
        lines[index++] = line;
    }

    // Split the lines across arrays of ten lines each
    string splitLines[10][10];
    for(int i = 0; i < index; ++i)
        splitLines[i / 10][i % 10] = lines[i];

    return 0;
}