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( #3333=superdoc: print w/replies, xml ) Need Help??
sub compatible { my ($s1, $s2) = @_; y/_/\0/c for $s1, $s2; !(($s1 | $s2)=~y/\0//); } print(compatible("_8__3__19", "48_____7_") ? "true\n" : "false\n");

Update: BrowserUK has pointed out that this is wrong. Indeed, it does not work if there is the same digit in both positions of the same string.

Update: Corrected (I hope) code

sub compatible { y/_/\477/c, y/_/\0/ for my @m = @_; !((($_[0] ^ $_[1]) & $m[0] & $m[1]) =~ y/\0//c); } printf "%s v %s ? %s\n", @$_, compatible( @$_ ) ? 1 : 0 for [ qw[ _8__3__19 48____7__ ] ], # compat [ qw[ _8__3__19 4_8___7__ ] ], # compat [ qw[ _8__3__19 48_____7_ ] ]; # clash

Update: Oh, I've got it wrong again. forget this.

In reply to Re: Comparison by position and value by ambrus
in thread Comparison by position and value by BrowserUk

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