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Create Swap_odd_even_bits.py #35

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13 changes: 13 additions & 0 deletions snippets/python/Swap_odd_even_bits.py
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def swapOddEvenBits(n):
# 0xAAAAAAAA = 101010...10 (32 bits), mask to extract even-positioned bits
even_bits = n & 0xAAAAAAAA
# 0x55555555 = 010101...01 (32 bits), mask to extract odd-positioned bits
odd_bits = n & 0x55555555

# Right shift even bits, left shift odd bits
even_bits >>= 1
odd_bits <<= 1

return even_bits | odd_bits

print(swapOddEvenBits(23)) # Output would be 43 for input 23 (0b10111 -> 0b101011)