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Diffstat (limited to 'prolog/problems/dcg/ab_2/en.py')
-rw-r--r-- | prolog/problems/dcg/ab_2/en.py | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/prolog/problems/dcg/ab_2/en.py b/prolog/problems/dcg/ab_2/en.py new file mode 100644 index 0000000..8025081 --- /dev/null +++ b/prolog/problems/dcg/ab_2/en.py @@ -0,0 +1,10 @@ +id = 162 +name = 'ab/2' +slug = 'a*b*' + +description = '''\ +<p>Write a DCG with the starting symbol <code>ab</code> for the language <code>a<sup>m</sup>b<sup>n</sup></code>, where m, n ≥ 0.</p> +<p>Example words: <code>[]</code>, <code>a</code>, <code>aab</code>, <code>abbb</code>, <code>bbb</code>.</p> +<p>Hint: to generate words of increasing length, use the query <code>conc(Word,_,_), ab(Word,[])</code>.</p>''' + +hint = {} |