Initial data commit

Task/Matrix-chain-multiplication/Python/matrix-chain-multiplication-1.py

@@ -0,0 +1,13 @@
+def parens(n):
+    def aux(n, k):
+        if n == 1:
+            yield k
+        elif n == 2:
+            yield [k, k + 1]
+        else:
+            a = []
+            for i in range(1, n):
+                for u in aux(i, k):
+                    for v in aux(n - i, k + i):
+                        yield [u, v]
+    yield from aux(n, 0)