10-03
Tuplas
Métodos
t.count(s: string): number
t.index(s: string): number
Sets
In Python, a set is an unordered collection of unique elements. Here’s what you need to know:
- No duplicates: Every item in a set is unique.,
- Unordered: The elements have no fixed order, so you can’t access them by index.,
- Mutable: You can add or remove items after creation, but the items themselves must be immutable (like numbers, strings, or tuples).,
Basic usage:
# Create a set
my_set = {1, 2, 3, 4}
print(my_set) # Output: {1, 2, 3, 4}
# Adding elements
my_set.add(5) # {1, 2, 3, 4, 5}
# Removing elements
my_set.remove(2) # {1, 3, 4, 5}
# Check membership
print(3 in my_set) # True
# No duplicates allowed
my_set = {1, 2, 2, 3}
print(my_set) # Output: {1, 2, 3}
# Subset
my_set.issubset(set(5,3,2,6))
# Superset
my_set.issuperset(set(2,5,5,6))
Set operations:
- Union: Combines elements from both sets:
a | bora.union(b), - Intersection: Only elements in both:
a & bora.intersection(b), - Difference: Elements in one but not the other:
a - b, - Symmetric Difference: Elements in either, but not both:
a ^ b
