C++ program based on how many stars i give?

[Koodaja22]

Hello i currently have a program that makes a downward star pyramid and based on the user input makes rows from it.

#include <iostream>
using namespace std;

int main()
{
    int rows;

    cout << "Enter number of rows: ";
    cin >> rows;

    for(int i = rows; i >= 1; --i)
    {
        for(int space = 0; space < rows-i; ++space)
            cout << "  ";

        for(int j = i; j <= 2*i-1; ++j)
            cout << "* ";

        for(int j = 0; j < i-1; ++j)
            cout << "* ";

        cout << endl;
    }

    return 0;
}

so the output looks like this if i put 9 for example

* * * * * * * * * * * * * * * * *
  * * * * * * * * * * * * * * *
    * * * * * * * * * * * * *
      * * * * * * * * * * *
        * * * * * * * * *
          * * * * * * *
            * * * * *
              * * *
                *

The way i would wanted it to be like this

 * * * * * * * * *
   * * * * * * *
     * * * * *
       * * *
         *

[coder777]

int main()
{
    int input;
    int rows;

    cout << "Enter number of rows: ";
    cin >> input;

    rows = input / 2.0 + 0.5;

...

}

[seeplus]

also change your prompt. Your output is what would be expected from the prompt given.