Problem: Twelve

Code: Twelve/tails_1642477453

Nibbles version: 0.2 | 0.21 | 0.22 | 0.23 | 0.24 | 0.25 | 1.00

Format: Compact | Simple | +Type | Table | JSON | .nbl (DeBruijn) | .nbl (names)

Note: This code seems to be written in Nibbles version < 0.22

. (map) 
    `< (sort) 
        , (range from 1) 
            + (add) 
                ; (save) -->let( C ) 
                    + (sum) 
                        . (map) 
                            @ (= fstLine) 
                            , (length) <--arg( A ) 
                                | (filter) 
                                    `, (range from 0) 
                                        $ (= A) 
                                    \ (char class) <--arg( B ) 
                                        $ (= B) 
                                        n (isAlphaNum) 
                * (multiply) 
                    / (divide) 
                        $ (= C) 
                        12 (integer) 
                    4 (integer) 
    > (drop) <--arg( D ) 
        $ (= D) 
        "" (string)