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23 changes: 23 additions & 0 deletions src/intro_1/sieve_of_eratosthenes
Original file line number Diff line number Diff line change
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def sieve(n):
"""
Реализация решета Эратосфена.
Функция возвращает массив простых чисел от 1 до n.
"""

prime = [1 for i in range(n + 1)]
prime[0] = prime[1] = 0

num = 2
while num * num <= n:
if prime[num] == 1:
for i in range(num * num, n + 1, num):
prime[i] = 0
num += 1

result = []

for num in range(n + 1):
if prime[num]:
result.append(num)

return result