17 lines
340 B
Python
17 lines
340 B
Python
from z3 import *
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iters = [ Int(f"x{i}") for i in range(20) ]
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solver = Solver()
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for n,x in enumerate(iters):
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if n == 0:
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solver.add(x == 1111)
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else:
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last = iters[n - 1]
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solver.add(Or(x == last, (x * 2) == last, x == ((last * 3) + 1)))
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solver.add(iters[-1] == 1)
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print(solver.check())
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print(solver.model()) |