http://qs321.pair.com?node_id=30151

ANKUR has asked for the wisdom of the Perl Monks concerning the following question:

HI
This is just another perl newbie here.Thanks every1 for replying to my question about merging files.
.Phew! i really do have a long way to go. Anyway i was going through some C exercises i had done previously and i came across an interesting
exercise. You have to write a program to produce
the following output
Well, um i wrote the code , but since er i just baby talk perl,
the code is very big i just know that there
is a more better and more intelligent way to do it
.I will really appreciate your help perl monks if you kindly
SHOW A BETTER WAY TO DO IT
THANKS ankur 
                 ABCDEFGFEDCBA   
                 ABCDEF FEDCBA   
                 ABCDE   EDCBA   
                 ABCD     DCBA   
                 ABC       CBA    
                 AB         BA  
                 A           A                            






<CODE>
#!/usr/bin/perl -w               
@store=('a'..'g');               
$i=@store;                       
$count=0;                         
while($i>=0){                    
&printline($i-1,@store);         
&revline($i-1,$count,@store);    $count++;                        
pop(@store);                     
}
sub printline{                   
($itemp,@printarray)=@_;         
for($j=0;$j<=$itemp;$j++){       
print "$printarray[$j]";         
}                                
}                                

sub revline{                     
($it,$cou,@linarray)=@_;         
if ($cou==0){                    
for($k=$it;$k>=0;$k--){          
print "$linarray[$k]";           
}                                
print '/n';                      
return;                          
} 
$p=$cou-1;                       
$r=2*$p + 1;                     
for ($j=1;$j<=$r;$j++){          
print " ";                       
}                                
for($k=@linarray-1;$k>=0;$k--){  
print "$store[$k]";              

if ($k==0){                      
print '\n' ;                     
 }                               
  }                              
 }

[download]
er i dont know formatting yet

Back to Seekers of Perl Wisdom