Answer:
Firewall is the correct answer for the above question.
Explanation:
- A firewall is used to block unwanted sites for any users of the network. It can be software or hardware or both. It is also called a system because it can be a mixture of the software and the hardware.
- It is used to block unwanted sites. When any user does not want to access any sites from the computer system, then he blocks the sites with the help of this.
- The above question asked about the system which is used to block unwanted information. This system is known as a firewall. Hence the answer is FIrewall.
 
        
             
        
        
        
Answer:
int main() {
    int n;
    cout<<"Enter the integer n"<<endl;
    cin>>n;
    if(n<1 || n>10)
    {
        while(n>10 || n<1)//taking input if the number is not within range..
        {
            cout<<"Enter the number again"<<endl;
            cin>>n;
        }
        activity(n);//calling activity with the n..
    }
 return 0;
}
Explanation:
Above written is the main function in which a prompting an integer between 1 and 10 if it is not within range then again taking input.Then after that calling activity with n as argument.
 
        
             
        
        
        
An Average of 10 times faster.
Hope this helps!