diff --git a/.idea/AlgoDatSoSe25.iml b/.idea/AlgoDatSoSe25.iml
index bf024fa..982282a 100644
--- a/.idea/AlgoDatSoSe25.iml
+++ b/.idea/AlgoDatSoSe25.iml
@@ -5,7 +5,7 @@
       <excludeFolder url="file://$MODULE_DIR$/.venv" />
       <excludeFolder url="file://$MODULE_DIR$/venv" />
     </content>
-    <orderEntry type="jdk" jdkName="Python 3.12 (AlgoDatSoSe25)" jdkType="Python SDK" />
+    <orderEntry type="jdk" jdkName="Python 3.12 (SoSe25)" jdkType="Python SDK" />
     <orderEntry type="sourceFolder" forTests="false" />
   </component>
 </module>
\ No newline at end of file
diff --git a/praktika/01_max_folge/algorithms.py b/praktika/01_max_folge/algorithms.py
index aafccf2..f5f3ab9 100644
--- a/praktika/01_max_folge/algorithms.py
+++ b/praktika/01_max_folge/algorithms.py
@@ -3,6 +3,7 @@ from utils.memory_cell import MemoryCell
 from utils.constants import MIN_VALUE
 from utils.memory_manager import MemoryManager
 from utils.memory_range import mrange
+from utils.literal import Literal
 
 def max_sequence_1(z: MemoryArray):
     n = z.length()
@@ -13,7 +14,7 @@ def max_sequence_1(z: MemoryArray):
     for i in mrange(n):
         for j in mrange(i, n):
             s.set(0)
-            for k in mrange(i, j):
+            for k in mrange(i, j.succ()):
                 s += z[k]
             if s > m:
                 m.set(s)
@@ -21,6 +22,77 @@ def max_sequence_1(z: MemoryArray):
                 r.set(j)
     return m, l, r
 
+def max_sequence_2(z: MemoryArray):
+    n = z.length()
+    m = MemoryCell(MIN_VALUE)
+    s = MemoryCell()
+    l = MemoryCell()
+    r = MemoryCell()
+    for i in mrange(n):
+        s.set(0)
+        for j in mrange(i, n):
+            s += z[j]
+            if s > m:
+                m.set(s)
+                l.set(i)
+                r.set(j)
+    return m, l, r
+
+def max_sequence_3(z: MemoryArray, l = None, r = None):
+    if l is None:
+        l = Literal(0)
+    if r is None:
+        r = z.length().pred()
+    if l == r:
+        return z[l], l, r
+    m = Literal((int(l) + int(r)) // 2)
+    lm, ll, lr = max_sequence_3(z, l, m)
+    rm, rl, rr = max_sequence_3(z, m.succ(), r)
+    zm, zl, zr = find_between(z, l, m, r)
+    if lm >= rm and lm >= zm:
+        return lm, ll, lr
+    if rm >= lm and rm >= zm:
+        return rm, rl, rr
+    return zm, zl, zr
+
+def find_between(z: MemoryArray, l, m, r):
+    max_sum = MemoryCell(MIN_VALUE)
+    s = MemoryCell(0)
+    border = MemoryCell()
+    for i in mrange(m, l.pred(), -1):
+        s += z[i]
+        if s > max_sum:
+            max_sum.set(s)
+            border.set(i)
+    left_max = Literal(max_sum)
+    left_border = Literal(border)
+    max_sum = MemoryCell(MIN_VALUE)
+    s.set(0)
+    for i in mrange(m.succ(), r.succ()):
+        s += z[i]
+        if s > max_sum:
+            max_sum.set(s)
+            border.set(i)
+    max_sum += left_max
+    return max_sum, left_border, border
+
+def max_sequence_4(z: MemoryArray):
+    n = z.length()
+    max_sum = MemoryCell(MIN_VALUE)
+    curr_sum = MemoryCell(0)
+    curr_left = MemoryCell(0)
+    r = MemoryCell()
+    l = MemoryCell()
+    for i in mrange(n):
+        curr_sum += z[i]
+        if curr_sum > max_sum:
+            max_sum.set(curr_sum)
+            l.set(curr_left)
+            r.set(i)
+        if curr_sum < Literal(0):
+            curr_sum.set(0)
+            curr_left.set(i.succ())
+    return max_sum, l, r
 
 def example(max_sequence_func):
     l = [-59, 52, 46, 14, -50, 58, -87, -77, 34, 15]
@@ -53,8 +125,9 @@ def analyze_complexity(max_sequence_func, sizes):
 
 
 if __name__ == '__main__':
-    example(max_sequence_1)
-    for filename in ["data/seq0.txt", "data/seq1.txt"]:
-        print(filename)
-        seq(filename, max_sequence_1)
-    analyze_complexity(max_sequence_1, [10, 20, 30, 40, 50, 60, 70, 80, 90, 100])
\ No newline at end of file
+    for func in [max_sequence_1, max_sequence_2, max_sequence_3, max_sequence_4]:
+        example(func)
+        for filename in ["data/seq0.txt", "data/seq1.txt"]:
+            print(filename)
+            seq(filename, func)
+        analyze_complexity(func, [10, 20, 30, 40, 50, 60, 70, 80, 90, 100])
diff --git a/utils/game.py b/utils/game.py
new file mode 100644
index 0000000..cdb9dff
--- /dev/null
+++ b/utils/game.py
@@ -0,0 +1,53 @@
+import pygame
+
+class Game:
+
+    def __init__(self, title, fps=60, size=(640, 400)):
+        self.title = title
+        self.fps = fps
+        self.size = size
+        self.clock = pygame.time.Clock()
+        self.dt = 0
+        self.screen = None
+
+    def init_game(self):
+        pygame.init()
+        pygame.display.set_caption(self.title)
+        self.screen = pygame.display.set_mode(self.size)
+
+
+    def game_loop(self):
+        while True:
+            # Berechnung der Zeitdifferenz seit dem letzten Frame
+            self.dt = self.clock.tick(self.fps) / 1000
+            if self.event_handling() == False:
+                break
+            if self.update_game() == False:
+                break
+            self.draw_game()
+
+    def exit_game(self):
+        pygame.quit()
+
+    def event_handling(self):  # bleibt in der Unterklasse unverändert
+        for event in pygame.event.get():
+            if not self.handle_event(event):
+                return False
+        return True
+
+    def handle_event(self, event):  # wird in der Unterklasse überschrieben
+        if event.type == pygame.QUIT:
+            return False
+        return True
+
+    def update_game(self):
+        return True
+
+    def draw_game(self):
+        pygame.display.flip()
+
+    def run(self):
+        self.init_game()
+        self.game_loop()
+        self.exit_game()
+
diff --git a/utils/literal.py b/utils/literal.py
index 92cd423..ac41a93 100644
--- a/utils/literal.py
+++ b/utils/literal.py
@@ -71,6 +71,10 @@ class Literal:
         """Repräsentation des Werts."""
         return f"{self.value}"
 
+    def __repr__(self):
+        """Repräsentation des Werts für Debugging-Zwecke."""
+        return f"Literal(value={self.value}, reads={self.read_count})"
+
     def get_read_count(self):
         """Gibt zurück, wie oft der Wert gelesen wurde."""
         return self.read_count
@@ -80,6 +84,12 @@ class Literal:
         self.read_count += 1
         return int(self.value)
 
+    def succ(self):
+        return Literal(self.value+1)
+
+    def pred(self):
+        return Literal(self.value-1)
+
 
 if __name__ == "__main__":
     l1 = Literal(5)
diff --git a/utils/memory_array.py b/utils/memory_array.py
index 65f40e9..92ab2ca 100644
--- a/utils/memory_array.py
+++ b/utils/memory_array.py
@@ -73,6 +73,14 @@ class MemoryArray:
         a.reset_counters()
         return a
 
+    @staticmethod
+    def create_sorted_array(count):
+        """Erzeugt ein sortiertes Speicherarray."""
+        a = MemoryArray(list(range(count)))
+        a.reset_counters()
+        return a
+
+
     @staticmethod
     def create_array_from_file(filename, limit=None):
         """Erzeugt ein Speicherarray aus einer Datei."""
diff --git a/vorlesung/01_grundlagen/euklid.py b/vorlesung/01_grundlagen/euklid.py
new file mode 100644
index 0000000..ae79752
--- /dev/null
+++ b/vorlesung/01_grundlagen/euklid.py
@@ -0,0 +1,13 @@
+from utils.memory_cell import MemoryCell
+from utils.literal import Literal
+
+x = MemoryCell(int(input("Erste Zahl: ")))
+y = MemoryCell(int(input("Zweite Zahl: ")))
+
+while x > Literal(0):
+    if x < y:
+        x, y = y, x
+    x -= y
+print(y)
+
+print(f"Insgesamt gab es {x.sub_count + y.sub_count} Subtraktionen.")
\ No newline at end of file
diff --git a/vorlesung/02_elementares_sortieren/bubble_game.py b/vorlesung/02_elementares_sortieren/bubble_game.py
new file mode 100644
index 0000000..11bda67
--- /dev/null
+++ b/vorlesung/02_elementares_sortieren/bubble_game.py
@@ -0,0 +1,41 @@
+import random
+import pygame
+from utils.game import Game
+from utils.memory_array import MemoryArray
+from bubble_sorting import bubble_sort_stepwise
+
+WHITE = (255, 255, 255)
+BLUE = (0, 0, 255)
+
+class BubbleGame(Game):
+
+    def __init__(self):
+        super().__init__("Bubble Game", fps=60, size=(400, 400))
+        random.seed()
+        l =list(range(1, 101))
+        random.shuffle(l)
+        self.z = MemoryArray(l)
+        self.finished = False
+        self.sort_generator = bubble_sort_stepwise(self.z)
+
+    def update_game(self):
+        if not self.finished:
+            try:
+                next(self.sort_generator)
+            except StopIteration:
+                self.finished = True
+        return True
+
+    def draw_game(self):
+        self.screen.fill(WHITE)
+        for i, cell in enumerate(self.z):
+            x = 50 + i*3
+            y = 350 - cell.value * 3
+            pygame.draw.rect(self.screen, BLUE, (x, y, 3, 3))
+        super().draw_game()
+
+
+if __name__ == "__main__":
+    b = BubbleGame()
+    b.run()
+
diff --git a/vorlesung/02_elementares_sortieren/bubble_sorting.py b/vorlesung/02_elementares_sortieren/bubble_sorting.py
new file mode 100644
index 0000000..2ee32b3
--- /dev/null
+++ b/vorlesung/02_elementares_sortieren/bubble_sorting.py
@@ -0,0 +1,84 @@
+from utils.memory_array import MemoryArray
+from utils.memory_cell import MemoryCell
+from utils.constants import MIN_VALUE
+from utils.memory_manager import MemoryManager
+from utils.memory_range import mrange
+from utils.literal import Literal
+
+def bubble_sort_stepwise(z: MemoryArray):
+    n = z.length()
+    for i in mrange(n.pred()):
+        for j in mrange(n.pred(), i, -1):
+            if z[j.pred()] > z[j]:
+                swap(z, j, j.pred())
+                yield z
+
+
+def bubble_sort2_stepwise(z: MemoryArray):
+    n = MemoryCell(z.length())
+    true = Literal(1)
+    false = Literal(0)
+    sortiert = MemoryCell()
+    while True:
+        sortiert.set(true)
+        for i in mrange(n.pred()):
+            if z[i] > z[i.succ()]:
+                swap(z, i, i.succ())
+                sortiert.set(false)
+                yield z
+        n -= Literal(1)
+        if sortiert == true or n <= Literal(1):
+            break
+
+
+def bubble_sort(z: MemoryArray):
+    sort_generator = bubble_sort_stepwise(z)
+    while True:
+        try:
+            next(sort_generator)
+        except StopIteration:
+            break
+
+
+def bubble_sort2(z: MemoryArray):
+    sort_generator = bubble_sort2_stepwise(z)
+    while True:
+        try:
+            next(sort_generator)
+        except StopIteration:
+            break
+
+
+def sort_file(filename, sort_func):
+    z = MemoryArray.create_array_from_file(filename)
+    sort_func(z)
+    return z
+
+def analyze_complexity(sort_func, sizes, presorted=False):
+    """
+    Analysiert die Komplexität einer Sortierfunktion.
+
+    :param sort_func: Die Funktion, die analysiert wird.
+    :param sizes: Eine Liste von Eingabegrößen für die Analyse.
+    """
+    for size in sizes:
+        MemoryManager.purge()  # Speicher zurücksetzen
+        if presorted:
+            random_array = MemoryArray.create_sorted_array(size)
+        else:
+            random_array = MemoryArray.create_random_array(size, -100, 100)
+        sort_func(random_array)
+        MemoryManager.save_stats(size)
+
+    MemoryManager.plot_stats(["cells", "compares", "writes"])
+
+def swap(z: MemoryArray, i: int, j: int):
+    tmp = z[Literal(i)].value
+    z[Literal(i)] = z[Literal(j)]
+    z[Literal(j)].set(tmp)
+
+if __name__ == '__main__':
+        analyze_complexity(bubble_sort, [10, 20, 30, 40, 50, 60, 70, 80, 90, 100])
+#        analyze_complexity(bubble_sort2, [10, 20, 30, 40, 50, 60, 70, 80, 90, 100])
+#        analyze_complexity(bubble_sort, [10, 20, 30, 40, 50, 60, 70, 80, 90, 100], True)
+#        analyze_complexity(bubble_sort2, [10, 20, 30, 40, 50, 60, 70, 80, 90, 100], True)
diff --git a/vorlesung/02_elementares_sortieren/insert_game.py b/vorlesung/02_elementares_sortieren/insert_game.py
new file mode 100644
index 0000000..3d17b29
--- /dev/null
+++ b/vorlesung/02_elementares_sortieren/insert_game.py
@@ -0,0 +1,41 @@
+import random
+import pygame
+from utils.game import Game
+from utils.memory_array import MemoryArray
+from insert_sorting import insert_sort_stepwise
+
+WHITE = (255, 255, 255)
+BLUE = (0, 0, 255)
+
+class InsertGame(Game):
+
+    def __init__(self):
+        super().__init__("Insert Game", fps=60, size=(400, 400))
+        random.seed()
+        l =list(range(1, 101))
+        random.shuffle(l)
+        self.z = MemoryArray(l)
+        self.finished = False
+        self.sort_generator = insert_sort_stepwise(self.z)
+
+    def update_game(self):
+        if not self.finished:
+            try:
+                next(self.sort_generator)
+            except StopIteration:
+                self.finished = True
+        return True
+
+    def draw_game(self):
+        self.screen.fill(WHITE)
+        for i, cell in enumerate(self.z):
+            x = 50 + i*3
+            y = 350 - cell.value * 3
+            pygame.draw.rect(self.screen, BLUE, (x, y, 3, 3))
+        super().draw_game()
+
+
+if __name__ == "__main__":
+    b = InsertGame()
+    b.run()
+
diff --git a/vorlesung/02_elementares_sortieren/insert_sorting.py b/vorlesung/02_elementares_sortieren/insert_sorting.py
new file mode 100644
index 0000000..6e526ee
--- /dev/null
+++ b/vorlesung/02_elementares_sortieren/insert_sorting.py
@@ -0,0 +1,61 @@
+from utils.memory_array import MemoryArray
+from utils.memory_cell import MemoryCell
+from utils.memory_manager import MemoryManager
+from utils.memory_range import mrange
+from utils.literal import Literal
+
+def insert_sort_stepwise(z: MemoryArray):
+    n = z.length()
+    j = MemoryCell()
+    elem = MemoryCell()
+    for i in mrange(n):
+        elem.set(z[i])
+        j.set(i)
+        while j > Literal(0) and z[j.pred()] > elem:
+            z[j].set(z[j.pred()])
+            j -= Literal(1)
+            yield z
+        z[j].set(elem)
+        yield z
+
+
+def insert_sort(z: MemoryArray):
+    sort_generator = insert_sort_stepwise(z)
+    while True:
+        try:
+            next(sort_generator)
+        except StopIteration:
+            break
+
+def sort_file(filename, sort_func):
+    z = MemoryArray.create_array_from_file(filename)
+    sort_func(z)
+    return z
+
+
+def analyze_complexity(sort_func, sizes, presorted=False):
+    """
+    Analysiert die Komplexität einer Sortierfunktion.
+
+    :param sort_func: Die Funktion, die analysiert wird.
+    :param sizes: Eine Liste von Eingabegrößen für die Analyse.
+    """
+    for size in sizes:
+        MemoryManager.purge()  # Speicher zurücksetzen
+        if presorted:
+            random_array = MemoryArray.create_sorted_array(size)
+        else:
+            random_array = MemoryArray.create_random_array(size, -100, 100)
+        sort_func(random_array)
+        MemoryManager.save_stats(size)
+
+    MemoryManager.plot_stats(["cells", "compares", "writes"])
+
+def swap(z: MemoryArray, i: int, j: int):
+    tmp = z[Literal(i)].value
+    z[Literal(i)] = z[Literal(j)]
+    z[Literal(j)].set(tmp)
+
+if __name__ == '__main__':
+        analyze_complexity(insert_sort, [10, 20, 30, 40, 50, 60, 70, 80, 90, 100])
+        analyze_complexity(insert_sort, [10, 20, 30, 40, 50, 60, 70, 80, 90, 100], True)
diff --git a/vorlesung/02_elementares_sortieren/select_game.py b/vorlesung/02_elementares_sortieren/select_game.py
new file mode 100644
index 0000000..8c65eb3
--- /dev/null
+++ b/vorlesung/02_elementares_sortieren/select_game.py
@@ -0,0 +1,41 @@
+import random
+import pygame
+from utils.game import Game
+from utils.memory_array import MemoryArray
+from select_sorting import select_sort_stepwise
+
+WHITE = (255, 255, 255)
+BLUE = (0, 0, 255)
+
+class SelectGame(Game):
+
+    def __init__(self):
+        super().__init__("Select Game", fps=60, size=(400, 400))
+        random.seed()
+        l =list(range(1, 101))
+        random.shuffle(l)
+        self.z = MemoryArray(l)
+        self.finished = False
+        self.sort_generator = select_sort_stepwise(self.z)
+
+    def update_game(self):
+        if not self.finished:
+            try:
+                next(self.sort_generator)
+            except StopIteration:
+                self.finished = True
+        return True
+
+    def draw_game(self):
+        self.screen.fill(WHITE)
+        for i, cell in enumerate(self.z):
+            x = 50 + i*3
+            y = 350 - cell.value * 3
+            pygame.draw.rect(self.screen, BLUE, (x, y, 3, 3))
+        super().draw_game()
+
+
+if __name__ == "__main__":
+    b = SelectGame()
+    b.run()
+
diff --git a/vorlesung/02_elementares_sortieren/select_sorting.py b/vorlesung/02_elementares_sortieren/select_sorting.py
new file mode 100644
index 0000000..6f80f19
--- /dev/null
+++ b/vorlesung/02_elementares_sortieren/select_sorting.py
@@ -0,0 +1,58 @@
+from utils.memory_array import MemoryArray
+from utils.memory_cell import MemoryCell
+from utils.memory_manager import MemoryManager
+from utils.memory_range import mrange
+from utils.literal import Literal
+
+def select_sort_stepwise(z: MemoryArray):
+    n = z.length()
+    cur_min = MemoryCell()
+    for i in mrange(n):
+        cur_min.set(i)
+        for j in mrange(i.succ(), n):
+            if z[j] < z[cur_min]:
+                cur_min.set(j)
+        swap(z, i, int(cur_min))
+        yield z
+
+
+def select_sort(z: MemoryArray):
+    sort_generator = select_sort_stepwise(z)
+    while True:
+        try:
+            next(sort_generator)
+        except StopIteration:
+            break
+
+def sort_file(filename, sort_func):
+    z = MemoryArray.create_array_from_file(filename)
+    sort_func(z)
+    return z
+
+
+def analyze_complexity(sort_func, sizes, presorted=False):
+    """
+    Analysiert die Komplexität einer Sortierfunktion.
+
+    :param sort_func: Die Funktion, die analysiert wird.
+    :param sizes: Eine Liste von Eingabegrößen für die Analyse.
+    """
+    for size in sizes:
+        MemoryManager.purge()  # Speicher zurücksetzen
+        if presorted:
+            random_array = MemoryArray.create_sorted_array(size)
+        else:
+            random_array = MemoryArray.create_random_array(size, -100, 100)
+        sort_func(random_array)
+        MemoryManager.save_stats(size)
+
+    MemoryManager.plot_stats(["cells", "compares", "writes"])
+
+def swap(z: MemoryArray, i: int, j: int):
+    tmp = z[Literal(i)].value
+    z[Literal(i)] = z[Literal(j)]
+    z[Literal(j)].set(tmp)
+
+if __name__ == '__main__':
+        analyze_complexity(select_sort, [10, 20, 30, 40, 50, 60, 70, 80, 90, 100])
+#        analyze_complexity(select_sort, [10, 20, 30, 40, 50, 60, 70, 80, 90, 100], True)