Question

3. Compose code that prompts the user to enter a number in the range of 1 through 100 and validates the input. [In C++ Please]

Answer 1

#include <iostream>
using namespace std;

int main(){
   int n;
    cout<<"Enter number: ";
    cin>>n;
   
   while(n<1 || n>100){
       cout<<"Invalid number\n";
       cout<<"Enter number: ";
        cin>>n;
   }
   
   cout<<"Valid number: "<<n<<endl;
   return 0;
}

Output:

Enter number: -1 Invalid number Enter number: 200 Invalid number Enter number: 101 Invalid number Enter number: 45 valid number: 45