2. Bitwise operators

 

NOT ( ~ ): Bitwise NOT is an unary operator that flips the bits of the number

i.e., if the i^th bit is 0, it will change it to 1 and vice versa.

Bitwise NOT is nothing but simply the one’s complement of a number.

Lets take an example : -

N = 5 = (101)₂

~N  =  ~5  =  ~(101)₂  =  (010)₂  =  2

code : 

                

while(t--)     {         cin>>a>>b;         n = a&b;         cout<<"and:"<<n<<endl;         n = a|b;         cout<<"or :"<<n<<endl;         n = a^b;         cout<<"xor:"<<n<<endl;         a = ~a; // 1's compliment         b = ~b+1; // 2's compliment         cout<<"not:"<<a<<' '<<b<<endl;     }