Question

Using C++ allow the user to enter the IP address as four 8 bit unsigned integer values (just use 4 sequential CIN statements). The program should output the IP address as all 32 bits assigned into 2 variable sized groups (host group and network group) and outputted as 2 unsigned integer values from 1 bit to 31 bits each.

Example functionality:

Enter and IP address:
192
168
1
5

Which bit would you like to see: 21

Output should be 1

(Because the binary of the IP address is 11000000101010000000000100000101

Answer 1

******************************************************************************************
Please Upvote the answer as it matters to me a lot :)
*****************************************************************************************
As per HomeworkLib expert answering guidelines,Experts are supposed to answer only certain number of questions/sub-parts in a post.Please raise the remaining as a new question as per HomeworkLib guidelines.
******************************************************************************************

#include <bits/stdc++.h>
using namespace std;

int main() {
unsigned int a,b,c,d;
cin>>a>>b>>c>>d;
long long int ans;
// ans= a<<24;
// cout<<ans<<" "<<endl;
// ans+=(b<<16);
// cout<<ans<<" "<<endl;
// ans+=(c<<8);
// cout<<ans<<" "<<endl;
// ans+=d;
// cout<<ans<<" "<<endl;
ans= (a<<24)+ (b<<16)+ (c<<8)+ d;
  
// // cout<<ans<<" "<<endl;
// long long int x,y;
// cout<<"How many bits in the network address:";
int bits;
cin>>bits;
// long long int left= pow(2,bits)-1;
// long long int right= pow(2,32-bits)-1;
// // cout<<ans<<" "<<bits<<" "<<left<<" "<<right<<endl;
// x= (ans&(left<<(32-bits)))>>(32-bits);
// y= ans&(right);
// cout<<x<<","<<y;
  
cout<<((ans>>(bits))%2);
   return 0;
}