Lecture 1

README.md

@@ -0,0 +1,14 @@
+## Algorithmen und Datenstrukturen im SoSe 24
+### Prof. Dr. Oliver Hofmann
+
+
+## Dateistruktur
+### Oberste Ebene
+- `README.md`: Diese Datei
+- seq0.txt bis seq3.txt: Sequenzen für die Aufgaben
+
+### algodat
+- `foundation.py`: Python-Modul mit Klassen und Modulen zur Messung von Zugriffen
+
+### lec01_alg
+- Beispiele aus der ersten Vorlesung

SoSe24/algodat/foundation.py

@@ -1,4 +1,5 @@
 class AlgoDatValue:
+    """A class representing a value with statistics."""
 
     memory = 0
     read = 0
@@ -12,7 +13,6 @@ class AlgoDatValue:
 
     @staticmethod
     def summary():
-        print("*** Summary ***")
         print(f"Memory: {AlgoDatValue.memory}")
         print(f"Read: {AlgoDatValue.read}")
         print(f"Write: {AlgoDatValue.write}")
@@ -23,7 +23,6 @@ class AlgoDatValue:
         print(f"Div: {AlgoDatValue.div_operation}")
         print(f"Bit: {AlgoDatValue.bit_operation}")
 
-
     def __init__(self, value):
         AlgoDatValue.memory += 1
         AlgoDatValue.write += 1
@@ -228,8 +227,14 @@ class AlgoDatValue:
     def __round__(self, n=0):
         return round(self.value, n)
 
+    def __setattr__(self, name, value):
+        if name == "value":
+            AlgoDatValue.write += 1
+        self.__dict__[name] = value
+
 
 class AlgoDatArray:
+    """A class representing an array of AlgoDatValue objects."""
 
     def __init__(self, size):
         self.size = size
@@ -263,10 +268,49 @@ class AlgoDatArray:
         self.array[index] = value
 
 
-def ReadIntSequence(filename):
+class MinusInf:
+    """A class representing negative infinity."""
+
+    def __gt__(self, other):
+        return False
+
+    def __ge__(self):
+        return False
+
+    def __lt__(self, other):
+        return True
+
+    def __le__(self, other):
+        return True
+
+    def __eq__(self, other):
+        return False
+
+
+class Inf:
+    """A class representing positive infinity."""
+
+    def __gt__(self, other):
+        return True
+
+    def __ge__(self):
+        return True
+
+    def __lt__(self, other):
+        return False
+
+    def __le__(self, other):
+        return False
+
+    def __eq__(self, other):
+        return False
+
+
+def read_int_sequence(filename: str) -> AlgoDatArray:
+    """Reads a sequence of integers from a file and returns an AlgoDatArray object."""
     with open(filename, "r") as file:
         l = list(map(int, file.read().split()))
     a = AlgoDatArray(len(l))
     for i in range(len(l)):
         a.set(i, AlgoDatValue(l[i]))
-    return a
+    return a

seq0.txt

@@ -0,0 +1,14 @@
+-59
+52
+46
+14
+-50
+58
+-87
+-77
+34
+15
+50
+47
+51
+48

seq1.txt

@@ -0,0 +1,100 @@
+56
+13
+97
+14
+5
+40
+33
+20
+51
+98
+52
+89
+31
+33
+47
+59
+47
+75
+11
+39
+0
+79
+33
+57
+5
+1
+28
+87
+77
+54
+35
+21
+24
+97
+96
+94
+6
+31
+-45
+53
+-98
+-44
+85
+-76
+-48
+-90
+-99
+47
+-11
+16
+-98
+98
+-23
+57
+27
+-35
+23
+65
+-54
+96
+71
+99
+81
+30
+-7
+76
+-22
+43
+62
+-49
+73
+59
+75
+36
+39
+15
+51
+-51
+63
+69
+1
+1
+-25
+-18
+88
+86
+93
+33
+71
+-95
+56
+2
+4
+11
+-55
+28
+60
+-55
+-69
+-97