Question

How to bitwise inverse the bits of a number in Python

Answer 1

def invert_bits(n):
    num_bits = n.bit_length()
    # Create a bitmask with all bits set to 1
    bitmask = (1 << num_bits) - 1
    # Invert the bits using XOR
    return n ^ bitmask


number = 155  

print(f"0b{bin(number)[2:].zfill(16)}")

number = invert_bits(number)

print(f"0b{bin(number)[2:].zfill(16)}")



'''
run:

0b0000000010011011
0b0000000001100100

'''

 

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