in reply to Base36 numbers: speed and golf
Of course, I can't say whether this is the fastest but it was designed to be fast.
which outputs:#!/usr/bin/perl -w use strict; my %next; BEGIN { @next{'0'..'9','A'..'Z'}= ('1'..'9','A'..'Z','0'); } sub inc36 { my $add= ""; my $dig; while( not $dig= $next{chop($_[0])} ) { $add .= $dig; if( ! length($_[0]) ) { $dig= '1'; last; } } $_[0] .= $dig . $add; } while( <DATA> ) { for( split " " ) { print "$_ + 1 = "; inc36( $_ ); print $_,$/; } } __END__ 0 1 9 A Y Z 10 19 1Z 9Z AZ ZZ YZZ XYZZY XYZZZ
0 + 1 = 1 1 + 1 = 2 9 + 1 = A A + 1 = B Y + 1 = Z Z + 1 = 10 10 + 1 = 11 19 + 1 = 1A 1Z + 1 = 20 9Z + 1 = A0 AZ + 1 = B0 ZZ + 1 = 100 YZZ + 1 = Z00 XYZZY + 1 = XYZZZ XYZZZ + 1 = XZ000- tye (but my friends call me "Tye")
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