primeiro commit com exercicios de Exercism realizados até esta data

python/collatz-conjecture/collatz_conjecture.py

@@ -0,0 +1,12 @@
+def steps(number):
+    steps: int = 0
+    if number <= 0:
+        raise ValueError("Only positive integers are allowed")
+    while number != 1:
+        steps += 1
+        if (number % 2) == 0:
+            number /= 2
+        else:
+            number *= 3
+            number += 1
+    return steps