Solutions to Project Section 1

First Program :

//To check whether the year is a leap year
#include<iostream.h>
int main( )
{
int year;
cout<<"Enter the year you want to check: ";
cin>>year;

if ( ( (year%100)!=0 ) && ( (year%4)= =0) )
    {
    cout<<endl<<"The year "<<year<<" is a leap year";
    }
else if ( (year%400)= =0 )
    {
    cout<<endl<<"The year "<<year<<" is a CENTURY LEAP YEAR";
    }
else
    {
    cout<<endl<<"The year "<<year<<" is NOT a leap year ";
    }
return 0;
}

Second Program:

// Simple calculator

#include<iostream.h>
int main( )
{
int num1, num2, num3;
char choice;
cout<<"Let's calculate two numbers. Enter the two numbers: ";
cin>>num1;
cin>>num2;
cout<<"What do you want to do with the numbers? Choose one of the options : ";
cout<<"a for add, s for subtract, m for multiply, d for divide : ";
cin>>choice;
switch (choice)
{
    case 'a':
    {
    num3 = num1 + num2;
    cout<<"The sum of the two numbers is : "<<num3;
    break;
    }
    case 's':
    {
    num3=num1- num2;
    cout<<"The difference between the two numbers is : "<<num3;
    break;
    }
    case 'm':
    {
    num3 = num1*num2;
    cout<<"The product of the two numbers is : "<<num3;
    break;
    }
    case 'd':
    {
    num3 = num1/num2;
    cout<<"The quotient of the two numbers is : "<<num3;
    break;
    }
    default:
    {
    cout<<"That is not a choice";
    break;
    }
}
return 0;
}

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