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-rw-r--r--prolog/problems/trees/mirrorbt_2/en.py4
1 files changed, 2 insertions, 2 deletions
diff --git a/prolog/problems/trees/mirrorbt_2/en.py b/prolog/problems/trees/mirrorbt_2/en.py
index 85c2a54..7bc622f 100644
--- a/prolog/problems/trees/mirrorbt_2/en.py
+++ b/prolog/problems/trees/mirrorbt_2/en.py
@@ -6,8 +6,8 @@ slug = 'flip a binary tree horizontally'
description = '''\
<p><code>mirrorBT(T, NewT)</code>: the binary tree <code>NewT</code> is obtained from <code>T</code> by flipping it over the vertical axis through the root node.</p>
<pre>
- ?- mirrorBT(b(b(b(nil,4,nil),2,b(nil,5,nil)),1,b(nil,3,nil)), X).
- X = b(b(nil,3,nil), 1, b(b(nil,5,nil), 2, b(nil,4,nil))).
+?- mirrorBT(b(b(b(nil,4,nil),2,b(nil,5,nil)),1,b(nil,3,nil)), X).
+ X = b(b(nil,3,nil), 1, b(b(nil,5,nil), 2, b(nil,4,nil))).
</pre>'''
hint = {}