Add examples for *args and **kwargs in functions

Introduced functions to demonstrate *args and **kwargs usage.

Author: woliul

day_25_More_on_Functions/args_kwargs_intro.py

@@ -0,0 +1,38 @@
+# Day 25: More on Functions - *args & **kwargs
+
+# --- Part 1: *args (Arbitrary Positional Arguments) ---
+# The *args parameter collects all positional arguments into a tuple.
+def sum_all_numbers(*args):
+    """Calculates the sum of an arbitrary number of numbers."""
+    print(f"args is a tuple: {args}")
+    total = sum(args)
+    print(f"The sum is: {total}")
+
+print("--- Using *args ---")
+sum_all_numbers(1, 2, 3)
+sum_all_numbers(10, 20, 30, 40)
+print("-" * 30)
+
+# --- Part 2: **kwargs (Arbitrary Keyword Arguments) ---
+# The **kwargs parameter collects all keyword arguments into a dictionary.
+def create_profile(**kwargs):
+    """Creates a user profile from an arbitrary number of key-value pairs."""
+    print(f"kwargs is a dictionary: {kwargs}")
+    for key, value in kwargs.items():
+        print(f"  {key.capitalize()}: {value}")
+
+print("--- Using **kwargs ---")
+create_profile(name="Alice", age=30)
+create_profile(username="coder_bob", city="New York", occupation="Developer")
+print("-" * 30)
+
+# --- Part 3: Combining *args and **kwargs ---
+# They can be used together in the same function.
+# The order is: regular arguments, *args, **kwargs
+def combined_example(required_arg, *args, **kwargs):
+    print(f"Required Argument: {required_arg}")
+    print(f"Positional Arguments (*args): {args}")
+    print(f"Keyword Arguments (**kwargs): {kwargs}")
+
+print("--- Combining *args and **kwargs ---")
+combined_example("I am required", 1, 2, 3, a=10, b=20)