diff --git a/Week01/info_bugra_ozturk.py b/Week01/info_bugra_ozturk.py
new file mode 100644
index 00000000..381cbac0
--- /dev/null
+++ b/Week01/info_bugra_ozturk.py
@@ -0,0 +1,2 @@
+student_id = "230316041"
+full_name = "Buğra Öztürk"
diff --git a/Week02/types_bugra_ozturk.py b/Week02/types_bugra_ozturk.py
new file mode 100644
index 00000000..3fa0f5e3
--- /dev/null
+++ b/Week02/types_bugra_ozturk.py
@@ -0,0 +1,4 @@
+my_int = 25
+my_float = 3.14
+my_bool = True
+my_complex = 2 + 3j
diff --git a/Week03/pyramid_bugra_ozturk.py b/Week03/pyramid_bugra_ozturk.py
new file mode 100644
index 00000000..98ce056b
--- /dev/null
+++ b/Week03/pyramid_bugra_ozturk.py
@@ -0,0 +1,7 @@
+def calculate_pyramid_height(number_of_blocks):
+    height = 0
+    used_blocks = 0
+    while used_blocks + (height + 1) <= number_of_blocks:
+        height += 1
+        used_blocks += height
+    return height
diff --git a/Week03/sequences_bugra_ozturk.py b/Week03/sequences_bugra_ozturk.py
new file mode 100644
index 00000000..b9074067
--- /dev/null
+++ b/Week03/sequences_bugra_ozturk.py
@@ -0,0 +1,28 @@
+def remove_duplicates(seq: list) -> list:
+    """
+    This function removes duplicates from a list.
+    """
+    result = []
+    for item in seq:
+        if item not in result:
+            result.append(item)
+    return result
+
+
+def list_counts(seq: list) -> dict:
+    """
+    This function counts the number of
+    occurrences of each item in a list.
+    """
+    counts = {}
+    for item in seq:
+        counts[item] = counts.get(item, 0) + 1
+    return counts
+
+
+def reverse_dict(d: dict) -> dict:
+    """
+    This function reverses the keys
+    and values of a dictionary.
+    """
+    return {value: key for key, value in d.items()}
diff --git a/Week04/decorators_bugra_ozturk.py b/Week04/decorators_bugra_ozturk.py
new file mode 100644
index 00000000..aca3d203
--- /dev/null
+++ b/Week04/decorators_bugra_ozturk.py
@@ -0,0 +1,23 @@
+import time
+import tracemalloc
+
+
+def performance(func):
+    def _performance(*args, **kwargs):
+        tracemalloc.start()
+        start = time.perf_counter()
+        result = func(*args, **kwargs)
+        end = time.perf_counter()
+        _, peak = tracemalloc.get_traced_memory()
+        tracemalloc.stop()
+
+        performance.counter += 1
+        performance.total_time += end - start
+        performance.total_mem += peak
+        return result
+    return _performance
+
+
+performance.counter = 0
+performance.total_time = 0
+performance.total_mem = 0
diff --git a/Week04/functions_bugra_ozturk.py b/Week04/functions_bugra_ozturk.py
new file mode 100644
index 00000000..ef57818c
--- /dev/null
+++ b/Week04/functions_bugra_ozturk.py
@@ -0,0 +1,27 @@
+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:
+    """
+    Calculates the result of the equation (x**a + y**b) / c.
+
+    :param x: First base, positional-only
+    :param y: Second base, positional-only
+    :param a: Exponent of x
+    :param b: Exponent of y
+    :param c: Divisor, keyword-only
+    :return: Result of (x**a + y**b) / c as a float
+    """
+    for name, value in (("x", x), ("y", y), ("a", a), ("b", b), ("c", c)):
+        if not isinstance(value, int):
+            raise TypeError(f"{name} must be an integer")
+    return (x ** a + y ** b) / c
+
+
+def fn_w_counter() -> (int, dict[str, int]):
+    if not hasattr(fn_w_counter, "total"):
+        fn_w_counter.total = 0
+        fn_w_counter.callers = {}
+    fn_w_counter.total += 1
+    fn_w_counter.callers[__name__] = fn_w_counter.callers.get(__name__, 0) + 1
+    return fn_w_counter.total, fn_w_counter.callers