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-rw-r--r--prolog/problems/denotational_semantics/prog_listswap_2/common.py16
1 files changed, 16 insertions, 0 deletions
diff --git a/prolog/problems/denotational_semantics/prog_listswap_2/common.py b/prolog/problems/denotational_semantics/prog_listswap_2/common.py
new file mode 100644
index 0000000..ae1c220
--- /dev/null
+++ b/prolog/problems/denotational_semantics/prog_listswap_2/common.py
@@ -0,0 +1,16 @@
+id = 175
+group = 'denotational_semantics'
+number = 79
+visible = True
+facts = None
+
+solution = '''\
+program --> [begin], instructs175, [end].
+
+instructs175 --> instr175.
+instructs175 --> instr175, instructs175.
+
+instr175 --> [left].
+instr175 --> [right].
+instr175 --> [swap].
+'''