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16 lines
227 B
Python
16 lines
227 B
Python
def is_prime(x):
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if x<2:
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return False
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for i in range(2,x):
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if x%i == 0:
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return False
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return True
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def test(n):
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k = 0
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for i in range(n):
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if is_prime(i):
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k += 1
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return k
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assert test(100) == 25 |