Update all new Tasks

Task/Digital-root-Multiplicative-digital-root/Python/digital-root-multiplicative-digital-root-1.py

@@ -0,0 +1,25 @@
+try:
+    from functools import reduce
+except:
+    pass
+
+def mdroot(n):
+    'Multiplicative digital root'
+    mdr = [n]
+    while mdr[-1] > 9:
+        mdr.append(reduce(int.__mul__, (int(dig) for dig in str(mdr[-1])), 1))
+    return len(mdr) - 1, mdr[-1]
+
+if __name__ == '__main__':
+    print('Number: (MP, MDR)\n======  =========')
+    for n in (123321, 7739, 893, 899998):
+        print('%6i: %r' % (n, mdroot(n)))
+
+    table, n = {i: [] for i in range(10)}, 0
+    while min(len(row) for row in table.values()) < 5:
+        mpersistence, mdr = mdroot(n)
+        table[mdr].append(n)
+        n += 1
+    print('\nMP: [n0..n4]\n==  ========')
+    for mp, val in sorted(table.items()):
+        print('%2i: %r' % (mp, val[:5]))

Task/Digital-root-Multiplicative-digital-root/Python/digital-root-multiplicative-digital-root-2.py

@@ -0,0 +1,10 @@
+def mdroot(n):
+    count, mdr = 0, n
+    while mdr > 9:
+        m, digitsMul = mdr, 1
+        while m:
+            m, md = divmod(m, 10)
+            digitsMul *= md
+        mdr = digitsMul
+        count += 1
+    return count, mdr