Question

Design a program that asks the user to enter a month (in numeric form), a day, and a two-digit year. The program should then determine whether the month times the day equals the year. If so, it should display a message saying the date is magic. Otherwise, it should display a message saying the date is not magic.

Answer 1

Answer:

#include <iostream>

using namespace std;

int main()

{

   int mt, day, yr, magic;

   cout << "Enter a month(numeric form)"<< endl;

   cin >> mt;

   cout << "please enter a day"<<endl;

   cin >> day;

   cout << "please enter a year"<< endl;

   cin >> yr;

   // Input Validation

   if (mt<1 || mt>12){

       cout<<"Invalid Month";

   }

   else if (day<1||day>31){

       cout<<"Invalid Day";

   }

   else if (yr>99||yr<0){

       cout<<"Invalid Year";

   }

   else{

   // Calculates magic

   magic = (mt * day);

   if (magic == yr)

   {

   cout << "it is a magic year"<<endl;;

   }

   else

   cout << "It is not a magic year" << endl;

   }

   return 0;

}

Explanation:

Using C++ we request the user to enter values for Month, day and year (two digits). We carry out input validation to ensure the user enters a valid month, day and year. Using if/elseif/if statements we ensure the conditions given in the question.