Add solution for problem zhiwehu#2

Author: jaflesch

solutions/02.py

@@ -0,0 +1,17 @@
+# 01.
+# Write a program which can compute the factorial of a given numbers.
+# The results should be printed in a comma-separated sequence on a single line.
+# Suppose the following input is supplied to the program:
+# 8
+# Then, the output should be:
+# 40320
+
+def factorial(x):
+    if(x == 1):
+        return 1
+    
+    return x * factorial(x - 1)
+
+x = int(input('Type your number: '))
+
+print(factorial(x))