recursively draw the lines

[Matt]

I am writing a recursive program to draw the lines recursively, given the
range[min,max] and number of intervals (n) between the range.

The problem is I don't know how to draw the line in point 0.375, as you see below.
Please advise! Thanks!


#include <iostream>
using namespace std;

void draw(double min, double max, int n);

int main()
{ draw(0,1,8);
}

void draw(double min, double max, int n)
{ if (n != 1)
{ double mid = (max - min)/2;
cout << mid << endl;
draw(min, mid, n/2);
}
}


The program output:
0.5
0.25
0.125

Here's the expected output:
0.5
0.25
0.125
0.375
0.75
0.625
0.875

[.oO LGV Oo.]

Re: recursively draw the lines


"Matt" <jrefactors@hot mail.com> a écrit dans le message de
news:ba8a039e.0 310050943.52034 ee@posting.goog le.com...[color=blue]
> I am writing a recursive program to draw the lines recursively, given the
> range[min,max] and number of intervals (n) between the range.
>
> The problem is I don't know how to draw the line in point 0.375, as you[/color]
see below.[color=blue]
> Please advise! Thanks!
>
>
> #include <iostream>
> using namespace std;
>
> void draw(double min, double max, int n);
>
> int main()
> { draw(0,1,8);
> }
>
> void draw(double min, double max, int n)
> { if (n != 1)
> { double mid = (max - min)/2;
> cout << mid << endl;
> draw(min, mid, n/2);
> }
> }
>
>
> The program output:
> 0.5
> 0.25
> 0.125
>
> Here's the expected output:
> 0.5
> 0.25
> 0.125
> 0.375
> 0.75
> 0.625
> 0.875[/color]

shouldn't you call draw(mid, max too, n/2) ?

[Pete Becker]

Re: recursively draw the lines

".oO LGV Oo." wrote:[color=blue]
>
>
> shouldn't you call draw(mid, max too, n/2) ?[/color]

draw(mid, max, n - n/2);

n could be odd.

--

Pete Becker
Dinkumware, Ltd. (http://www.dinkumware.com)