Eek, you're right. I just checked the Mastermind rules and it should not work like that. That is how I coded it to work, however.
Here's a quick hack that seems to correct the problem... now to fix the obfuscated version...
#!/usr/bin/perl -w
sub q {
$; = 1; # $; stores how many tries you've h
+ad; start at 1
for (0..3) {
$;[$_] = int(rand(9)) # @; stores the correct four number
+s; set it up here
}
}
sub _ {
print @_
}
&q;
for (;;) {
$: = $~ = 0; # set $: (right number in the right spot) and
+$~ (right number) to 0
_ "$/$; "; # prints a newline then the number of tries yo
+u've had
$_ = <>; # read a line into $_
if (/^\d{4}$/) { # if the line is exactly 4 digits...
@q = split //; # @q holds the 4 digits
--$#q; # set $#q = 3, ignoring the newline at $q[4]
$@ = -1; # set $@ to -1
# This loops through the input digits and checks for correctne
+ss
my @j = @;;
for (@q) { # set $_ to each of the 4 input d
+igits
($_ eq $j[++$@]) && ++$: && ($j[$@]='X') && ($q[$@]='Y')
}
for (@q) { # set $_ to each of the 4 input d
+igits
$a = $_; # set $a to the current digit (wh
+y not leave it $_?)
(grep /$a/, @j) && ++$~ # else increment $~ if you have a
+ right number in the wrong spot
}
_ "$~W$:B "; # print out the total of right/wrong ($~W) and r
+ight/right ($:B)
++$;; # increment number of tries
$: == 4 # if we have four right numbers all in the right
+ spots
| $; > 10 # or we have already had 10 tries
&& _ (@;) # print out the correct answer
&& &q # and start the game over
}
}