mirror of
https://github.com/Alexander-D-Karpov/scripts.git
synced 2024-11-26 05:23:42 +03:00
37 lines
751 B
Python
37 lines
751 B
Python
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def f(n):
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bin_n = bin(n)[2:]
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for _ in range(3):
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nch = 0
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ch = 0
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for e in str(n):
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if e in "02468":
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ch += 1
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else:
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nch += 1
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if ch == nch:
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if n % 2 == 1:
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bin_n += "1"
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else:
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bin_n += "0"
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else:
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if ch > nch:
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bin_n += "1"
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else:
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bin_n += "0"
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n = int(bin_n, 2)
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return n
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print(f(14))
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c = 0
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for i in range(100000, 1000000010):
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r = f(i)
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if 1_234_567_899 >= r >= 876_544:
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c += 1
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if c % 100000 == 0:
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print(i, r, c)
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if r > 1_334_567_899:
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break
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print(c)
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