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20 changes: 20 additions & 0 deletions Week03/sequences_emirhasan_koca
Original file line number Diff line number Diff line change
@@ -0,0 +1,20 @@
def remove_duplicates(seq: list) -> list:
"""
Bir listedeki tekrar eden öğeleri kaldırır ve sadece benzersiz öğeleri döndürür.
"""
return list(set(seq)) # Set'e çevirerek tekrar edenleri kaldırır, sonra listeye döner.

def list_counts(seq: list) -> dict:
"""
Her öğenin kaç kez tekrarlandığını içeren bir sözlük döner.
"""
counts = {}
for item in seq:
counts[item] = counts.get(item, 0) + 1 # Öğeyi sayar, yoksa 0'dan başlar.
return counts

def reverse_dict(d: dict) -> dict:
"""
Bir sözlüğün anahtarlarını ve değerlerini tersine çevirir.
"""
return {v: k for k, v in d.items()} # Sözlükte anahtar ve değeri yer değiştirir.