Reverse characters in a line
You have everything you need, just not in the right order. Mastermind would give you 26 white pegs.
Start file
abcdefghijklmnopqrstuvwxyz
End file
zyxwvutsrqponmlkjihgfedcba
View Diff
--- in 2010-12-28 19:41:39.000000000 -0800 +++ out 2010-12-28 19:41:59.000000000 -0800 @@ -1 +1 @@ -abcdefghijklmnopqrstuvwxyz +zyxwvutsrqponmlkjihgfedcba
Solutions by @beingryu:
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