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#!/usr/bin/perl #turtle walk in his room, writeing or doing nothing #$pen=1(write) 0(do nothing) -1(end program) use warnings; use strict; my $MaxSize = 30; my @turtle; my $Now = 0; my $Old = 0; my $pen = 0; my $step = 0; while ($pen = <STDIN>){ chomp $pen; last if $pen == -1; chomp ($step = <STDIN>); $Now = $Old + $step; if ($Old <= $Now){ for ($Old..$Now){ $turtle[$_] = 1 if $pen == 1; } }else{ for ($Now..$Old){ $turtle[$_] = 1 if $pen == 1; } } chomp ($step = <STDIN>); $Old = $Now; if ($step >= 0){ for (1..$step){ $turtle[$Old+$_*$MaxSize] = 1 if $pen==1; } }else{ for ($step..-1){ $turtle[$Old+$_*$MaxSize] = 1 if $pen==1; } } $Old = $Now + $step * $MaxSize; die "error, out of room." if $Old>=$MaxSize*$MaxSize || $Old<0; for (0..$MaxSize*$MaxSize-1){ print "\n" if ($_%$MaxSize==0 && $_!=0); $turtle[$_] ? print "* " : print "- "; } }