Right justified triangle help please

[paper32]

I can get my triangle to be left justified, but i have tried almost every combination of using spaces to move my triangle over to be right justified and i am absolutely stuck, please help.

#include <iostream>
using namespace std;

int main ()
{
int value,rowcount=0, starcount=0,initrow=0,starlinesize,spacecount;

cout << "Enter a positive integer: " <<endl;
cin >> value;

while (value < 0)
{
cout << "That was not a positive integer, re-enter: " <<endl;
cin >> value;
}

starlinesize=value;


for(rowcount=0; rowcount < value; rowcount++)
{
for (spacecount=rowcount; spacecount < value; spacecount++)
cout << ' ';
for (starcount=0; starcount < starlinesize; starcount++)
cout << '*';



starlinesize=starlinesize-1;
cout<< endl;


}



return 0;
}

[JMJAtlanta]

In such frustrating cases, it is sometimes caused by confusion on how the current program works.

1) Look at your loops and determine the details on how it works left-justified.

2) Formulate a plan on how you want the program to build the triangle right-justified.

3) Implement the plan by adjusting the existing code.

Reply back on where you get stuck.

[Texan40]

Here's one using while... extrapolate for for()

#include <iostream>

int main ()
{
  int lines = 0;

  std::cout << "Enter a positive integer: " << std::endl;
  std::cin >> lines;

  while (lines < 0)
  {
    std::cout << "That was not a positive integer, re-enter: " << std::endl;
    std::cin >> lines;
  }

  while(lines)
  {
    static int starcount = 1, spacecount = lines;
    int spaces = spacecount, stars = starcount;
    while(spaces)
    {
      std::cout << ' ';
      --spaces;
    }
    while(stars)
    {
      std::cout << '*';
      --stars;
    }
    std::cout << std::endl;
    starcount++;
    spacecount --;
    lines--;
  }
  return 0;
}