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Day-17/test.py

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+def factorial(n):
+    if n==0 or n==1:
+        return 1
+    return n* factorial(n-1)
+number=3
+print(f"factorial of {number}:{factorial(number)}")
+
+
+
+def fibonacci(n):
+    if n==0:
+        return 0
+    if n==1:
+        return 1
+    return fibonacci(n-1)+fibonacci(n-2)
+number=6
+print(f"fibinocci of {number}:{fibonacci(number)}")
+
+
+def sum_of_digits(n):
+    if n==0:
+        return 0
+    return n%10+ sum_of_digits(n//10)
+number=1234
+print(sum_of_digits(number))
+
+
+def factorial_iterative(n):
+    result = 1
+    for i in range(1, n + 1):
+        result *= i
+    return result
+number=5
+print(factorial_iterative(number))