Binary Complement

MATH

BIT MANIPULATION

### Problem

Given a positive integer `num`

, compute its binary complement. The binary complement is formed by flipping all bits of its binary representation (changing 0 to 1 and vice versa). Return the decimal value of the binary complement.

### Examples

`findComplement(8) // returns 7 // The binary representation of 8 is 1000 // its complement is 0111, which is 7 in decimal findComplement(10) // returns 5 // The binary representation of 10 is 1010 // its complement is 0101, which is 5 in decimal findComplement(7) // returns 0 // The binary representation of 7 is 111 // its complement is 000, which is 0 in decimal`

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