Add custom power and equation functions

Author: JalilG0

Week04/functions_jalil_guliyev.py

@@ -0,0 +1,36 @@
+
+custom_power = lambda x=0, /, e=1: x ** e
+
+
+def custom_equation(
+    x: int = 0, y: int = 0, /,
+    a: int = 1, b: int = 1, *, c: int = 1
+) -> float:
+    """Calculate the result of an equation.
+
+    :param x: First base.
+    :param y: Second base.
+    :param a: Exponent of x.
+    :param b: Exponent of y.
+    :param c: Divisor.
+    :return: The result of (x**a + y**b) / c.
+    """
+    if any(type(value) is not int for value in (x, y, a, b, c)):
+        raise TypeError("All parameters must be integers")
+
+    return (x ** a + y ** b) / c
+
+
+def fn_w_counter() -> (int, dict[str, int]):
+    if not hasattr(fn_w_counter, "counter"):
+        fn_w_counter.counter = 0
+        fn_w_counter.callers = {}
+
+    fn_w_counter.counter += 1
+    caller = __name__
+    fn_w_counter.callers[caller] = (
+        fn_w_counter.callers.get(caller, 0) + 1
+    )
+
+    return fn_w_counter.counter, fn_w_counter.callers.copy()
+