13 lines
287 B
Python
13 lines
287 B
Python
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with inp = ~calldataload(0):
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foo = inp
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exp = 0
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while foo >= 256:
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foo = ~div(foo, 256)
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exp += 1
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with x = ~div(inp, 16 ** exp):
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while 1:
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y = ~div(x + ~div(inp, x) + 1, 2)
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if x == y:
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return x
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x = y
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