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  1.  
  2. def f(d):
  3. 	print('For d =', d)
  4. 	# ar is the current tree, 0 is the root
  5. 	# ar[i] is the bitset of values xor-ed together
  6. 	ar = [(1 << i) for i in range(d)]
  7. 	a0 = ar[:]
  8. 	p = 0
  9. 	while 1:
  10. 		p += 1
  11. 		for i in range(d):
  12. 			for j in range(i+1, d):
  13. 				ar[i] ^= ar[j]
  14. 		for i in range(d):
  15. 			print((ar[0]>>i) & 1, end='')
  16. 		print('')
  17. 		if ar==a0:
  18. 			break
  19. 	print('Period is', p)
  20.  
  21. f(4)
  22.  
  23. f(6)
  24.  
  25. f(8)
Success #stdin #stdout 0.01s 28384KB
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stdin
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Standard input is empty
stdout
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For d = 4
1111
1010
1100
1000
Period is 4
For d = 6
111111
101010
110011
100010
111100
101000
110000
100000
Period is 8
For d = 8
11111111
10101010
11001100
10001000
11110000
10100000
11000000
10000000
Period is 8
https://ideone.com/b2AxKY
language:
Python 3 (python  3.9.5)
created:
6 years ago
visibility:
secret

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