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author | Aleš Smodiš <aless@guru.si> | 2015-08-18 16:06:19 +0200 |
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committer | Aleš Smodiš <aless@guru.si> | 2015-08-18 16:06:19 +0200 |
commit | 95e2fe57f6e4639f6ae9f1fef368829d5090dbf6 (patch) | |
tree | 462ba05eb0c4732ca1c97739548801258bf47b40 /prolog/problems/lists/evenlen_1_+_oddlen_1 |
Exported all problems from the SQLite database into the new directory structure.
Diffstat (limited to 'prolog/problems/lists/evenlen_1_+_oddlen_1')
-rw-r--r-- | prolog/problems/lists/evenlen_1_+_oddlen_1/common.py | 15 | ||||
-rw-r--r-- | prolog/problems/lists/evenlen_1_+_oddlen_1/en.py | 17 |
2 files changed, 32 insertions, 0 deletions
diff --git a/prolog/problems/lists/evenlen_1_+_oddlen_1/common.py b/prolog/problems/lists/evenlen_1_+_oddlen_1/common.py new file mode 100644 index 0000000..2735965 --- /dev/null +++ b/prolog/problems/lists/evenlen_1_+_oddlen_1/common.py @@ -0,0 +1,15 @@ +id = 116 +group = 'lists' +number = 23 +visible = True +facts = None + +solution = '''\ +evenlen([]). +evenlen([_,_|T]) :- + evenlen(T). + +oddlen([_]). +oddlen([_,_|T]) :- + oddlen(T). +''' diff --git a/prolog/problems/lists/evenlen_1_+_oddlen_1/en.py b/prolog/problems/lists/evenlen_1_+_oddlen_1/en.py new file mode 100644 index 0000000..d1957d1 --- /dev/null +++ b/prolog/problems/lists/evenlen_1_+_oddlen_1/en.py @@ -0,0 +1,17 @@ +id = 116 +name = 'evenlen/1 + oddlen/1' +slug = 'check if the length of a list is even or odd' + +description = '''\ +<p><code>evenlen(L)</code>: the list <code>L</code> has an even number of elements.<br /> +<code>oddlen(L)</code>: the list <code>L</code> has an odd number of elements.</p> +<pre> + ?- oddlen([1,2,3,4,5]). + true. + ?- oddlen([1,2,3,4]). + false. + ?- evenlen([1,2,3,4]). + true. +</pre>''' + +hint = {} |