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#1
June 30th, 2003, 11:07 AM
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recursive triangle
please help me .. i don't know how to write this program in C
Program which enters two integer values , m and n , where m<=n. Write a recursive function that prints a pattern of 2*(n-m+1) lines , where the first line contains m asterisks , the next line contains m+1 astrerisks , and so on up to line with n asterisks. Then the pattern is repeated backwards, going n back down to m. - may not use loops in your recursive function !! Example output : triangle (3,5) will print this : *** **** ***** **** *** Hint : Only one of the arguments changes in the recursive call .
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#2
June 30th, 2003, 12:55 PM
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here is a recursive solution in perl. im sure you'll be able to distinguish the relative parts:
Code:
#!/usr/bin/perl
## recursive example
recur(3, 5);
sub recur
{
(my $m, $n) = (@_);
if($n == $m)
{
print "*" x $m; print "\n";
return;
}
else
{
print "*" x $m; print "\n";
recur(++$m, $n);
print "*" x ($m - 1); print "\n";
}
}
__________________
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#4
June 30th, 2003, 08:44 PM
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Re: recursive triangle
Quote:
__________________
Jason Doucette / Xona.com™ - Programming Windows Errata Addendum "Discussion is an exchange of knowledge; argument is an exchange of ignorance."
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#5
July 1st, 2003, 04:35 PM
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thanks alot every body .. I solve it
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