#include <fstream>
#include <vector>
 
constexpr int COLUMNS_AMOUNT = 10; //amount of columns in the textfile
 
int main(int argc, char** argv)
{
    std::ifstream file_stream("jy.txt"); //create filestream to file
 
    std::vector<std::vector<int>>* matrix; //pointer to multidimensional vector
    matrix = new std::vector<std::vector<int>>(); //allocate new vector on the heap
 
    int index=0, tmp;
 
    while (file_stream.good()) //while data in the filestream
    {
        for (int i=0; i<COLUMNS_AMOUNT; i++) //for every row
        {
            if (file_stream.eof()) //check for end of file
                break;
 
            file_stream >> tmp; //fetch the next value
            (*matrix)[index][i] = tmp; //store the next value
        }
 
        ++index; //increment row-index
    }
 
    //do whatever you want with the matrix
 
    file_stream.close();
    delete matrix;
 
    return 0;
}

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