**Code to do binary inversion of a number in C++**

#include <iostream>

using namespace std;

int main() {

unsigned int ip_num,op_num,i=0,tmp;

cin>>ip_num;

tmp = ip_num;

while(tmp!=0)

{

tmp = tmp>>1;

i++;

}

//i = 8-i;

//i = 16 -i;

i = 32-i;

op_num = ~ip_num;

op_num = op_num<<i;

/* Any bit value right shifted should be re-initialised to zero */

//op_num = op_num&255;

//op_num = op_num&65535;

op_num = op_num&4294967295;

op_num = op_num>>i;

cout<<op_num;

return 0;

}

**Code to display Binary value of a number in C++ upto 16 binary digit.**

void toBin(unsigned int n){

int i=0;

//while(n && i!=16){

// int res = n&32768;

if(res)

cout<<1;

else

cout<<0;

n = n<<1;

i++;

}

cout<<endl;

}

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