From 95e2fe57f6e4639f6ae9f1fef368829d5090dbf6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ale=C5=A1=20Smodi=C5=A1?= <aless@guru.si>
Date: Tue, 18 Aug 2015 16:06:19 +0200
Subject: Exported all problems from the SQLite database into the new directory
 structure.

---
 prolog/problems/trees/maxt_2/common.py | 25 +++++++++++++++++++++++++
 prolog/problems/trees/maxt_2/en.py     | 12 ++++++++++++
 2 files changed, 37 insertions(+)
 create mode 100644 prolog/problems/trees/maxt_2/common.py
 create mode 100644 prolog/problems/trees/maxt_2/en.py

(limited to 'prolog/problems/trees/maxt_2')

diff --git a/prolog/problems/trees/maxt_2/common.py b/prolog/problems/trees/maxt_2/common.py
new file mode 100644
index 0000000..be51d46
--- /dev/null
+++ b/prolog/problems/trees/maxt_2/common.py
@@ -0,0 +1,25 @@
+id = 143
+group = 'trees'
+number = 50
+visible = True
+facts = None
+
+solution = '''\
+max143([X], X).
+max143([H|T], Max):-
+  max143(T, Max1),
+  ( H > Max1, Max is H
+    ;
+    H =< Max1, Max is Max1 ).
+
+maxT(t(E), E) :- !.
+maxT(Tree, Max) :-
+  Tree =.. [t, E|SubTrees],
+  getMaxElems(SubTrees, MaxElems),
+  max143([E|MaxElems], Max).
+
+getMaxElems([], []).
+getMaxElems([SubTree|SubTrees], [MaxElem|MaxElems]) :-
+  maxT(SubTree, MaxElem),
+  getMaxElems(SubTrees, MaxElems).
+'''
diff --git a/prolog/problems/trees/maxt_2/en.py b/prolog/problems/trees/maxt_2/en.py
new file mode 100644
index 0000000..3e15b34
--- /dev/null
+++ b/prolog/problems/trees/maxt_2/en.py
@@ -0,0 +1,12 @@
+id = 143
+name = 'maxT/2'
+slug = 'find the greatest element in a tree'
+
+description = '''\
+<p><code>maxT(Tree, Max)</code>: <code>Max</code> is the greatest element in the tree <code>Tree</code>.</p>
+<pre>
+  ?- maxT(t(1, t(2), t(3)), Max).
+    Max = 3.
+</pre>'''
+
+hint = {}
-- 
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