13 lines
246 B
Python
13 lines
246 B
Python
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def f(n):
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res = 0
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cont_op = 0
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i = n
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while i <= n:
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for j in range(i//2, i*i+1, i+1):
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for k in range(n, 2*n+1, i+1):
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res += n
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cont_op += 1
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i += i//2+1
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return cont_op
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