Create sequences_hatice_kubra_orhan.py

Week03/sequences_hatice_kubra_orhan.py

@@ -0,0 +1,39 @@
+def remove_duplicates(seq: list) -> list:
+    """
+    This function removes duplicates from a list.
+    """
+    seq = list(set(seq))
+
+    return seq
+
+def list_count(seq: list) -> dict:
+    """
+    This functioncounts the number of occurences of each item in a list.
+    """
+    count_dict = {}
+
+    for i in seq:
+        if i in count_dict :
+            count_dict[i] += 1
+        else:
+            count_dict[i] = 1
+
+    return count_dict
+
+def reverse_dict(d: dict) -> dict:
+    """
+    This function reverses the keys and values of a dictionary.
+    """
+    reversed_dict = {}
+    for key, value in d.items():
+        reversed_dict[value] = key
+
+    return reversed_dict
+
+
+# Testler
+print(remove_duplicates([1, 2, 3, 4, 5, 5, 5, 6, 7, 8, 9, 9, 9, 9, 9]))  # [1, 2, 3, 4, 5, 6, 7, 8, 9]
+
+print(list_count([1, 2, 3, 4, 5, 5, 5, 6, 7, 8, 9, 9, 9, 9, 9])  )   # {1: 1, 2: 1, 3: 1, 4: 1, 5: 3, 6: 1, 7: 1, 8: 1, 9: 5}
+
+print(reverse_dict({'a': 1, 'b': 2, 'c': 3, 'd': 2}))  # {1: 'a', 2: 'd', 3: 'c'}