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C++ For Loop Question

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Join Date: Mar 2006

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Duke_0064

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Newbie Poster

C++ For Loop Question

Mar 19th, 2006

Hello,

I have this for loop here, and everything is great except I can't figure out how to display 3 numbers per line instead of all number on one line. Can anyone help? Thanx!

#include <iostream>
using namespace std;

int main( )          

{

	int x;           

	

   



	cout << "Numbers between 5 and 12 (3 numbers per line)are:\n";



	for (x = 5; x <= 12; x++)

	{

		cout << x << " ";

		

	}

	    cout << endl << endl;

		

	return 0;

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Join Date: Sep 2004

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Narue

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Re: C++ For Loop Question

Mar 19th, 2006

You can play games with modular arithmetic to avoid adding another variable, but sometimes it's just easier to count how many numbers you've printed. When you get to 3, print a newline and reset the counter:

 Help with Code Tags 
 C++ Syntax (Toggle Plain Text) 
#include <iostream>
using namespace std;
 
int main()
{
  int x, n = 0;
 
  cout<<"Numbers between 5 and 12 (3 numbers per line)are:\n";
 
  for ( x = 5; x <= 12; x++ )
  {
    cout<< x <<" ";
 
    if ( ++n == 3 ) {
      cout<<'\n';
      n = 0;
    }
  }
 
  cout<<"\n\n";
}
#include <iostream>
using namespace std;

int main()
{
  int x, n = 0;

  cout<<"Numbers between 5 and 12 (3 numbers per line)are:\n";

  for ( x = 5; x <= 12; x++ )
  {
    cout<< x <<" ";

    if ( ++n == 3 ) {
      cout<<'\n';
      n = 0;
    }
  }

  cout<<"\n\n";
}