[Solved] how to decleare a 1D double array

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    Try this After taking the input in variable line do this:
    #include<iostream>
    #include<string>
    #include<sstring>
    using namespace std;
    void main()
    {
        bool flag=true;
        unsigned n,i=0;
        double x;
        string line,str;
        istringstream iss;
        cout<<"input your "
      getline(cin,line);
    int c=0;
      char * pch;
      pch = strtok (line," ,");// this will work for space and comma but you can add your own specifiers
      while (pch != NULL)
      {
        printf ("%s\n",pch);
        pch = strtok (NULL, " ,");
    c++;
      }

    return(c);// will give the length of arry.
}

solved how to decleare a 1D double array