# Function that flattens a 2D list, sorts it, and removes duplicates,
# and returns a new sorted list with unique values
def flatten_sort_unique(lst2d: list[list[int]]) -> list[int]:
# 1. Flatten the 2D list into a 1D list
flat: list[int] = []
for row in lst2d:
flat.extend(row)
# 2. Sort the flattened list
flat.sort()
# 3. Remove duplicates using a set, then convert back to a sorted list
unique: list[int] = sorted(set(flat))
return unique
# Input list
lst2d: list[list[int]] = [
[4, 3, 3, 2, 4],
[30, 10, 10],
[10, 30],
[1, 1, 6, 7, 7, 7, 8],
]
lst: list[int] = flatten_sort_unique(lst2d)
# Print results
for n in lst:
print(n, end="\t")
"""
run
1 2 3 4 6 7 8 10 30
"""
