Merge pull request codehouseindia#191 from rohnux/master

codehouseindia · web-flow · commit 1998d4b76297 · 2020-10-02T14:30:34.000+05:30
factorial of a given number
diff --git a/factorial.py b/factorial.py
@@ -1,8 +1,17 @@
+
 def factorial(n): 
-  
-    # single line to find factorial 
-    return 1 if (n==1 or n==0) else n * factorial(n - 1)  
-  
-num = int(input("Enter a number: "))
-print ("Factorial of",num,"is", 
-      factorial(num)) 
+	if n < 0: 
+		return 0
+	elif n == 0 or n == 1: 
+		return 1
+	else: 
+		fact = 1
+		while(n > 1): 
+			fact *= n 
+			n -= 1
+		return fact  
+
+num = 5; 
+print("Factorial of",num,"is", 
+factorial(num)) 
+
