USING CONDITION OPERATOR AND SOME PROGRAMS IN( IF ELSE STATEMENT)

Conditional operator

The conditional operator evaluates an expression returning a 
value if that expression is true and a different one if the expression is evaluated as false. Its format is:

condition ? result1 : result2

If condition is true the expression will return result1, if it is not it will return result2.

-
7 == 5 ? 4 : 3 // returns 3, since 7 is not equal to 5.

7 == 5+2 ? 4 : 3 // returns 4, since 7 is equal to 5+2.

5 > 3 ? a : b // returns the value of a, since 5 is greater

 than 3.

a > b ? a : b // returns whichever is greater, a or b.

here a program written using condition operator

#include<iostream>

using namespace std;

int main()

{

   int a,b,c;

   cout<<" enter 2 numbers\n";

   cin>>a>>b;

   c=(a>b)?a:b;

   cout<<" the greatest number is\n"<<c;

   return 0;

}

 let us see how to write a program to find a number is

odd or even

now let us see how to write a program to find a year leap 

year or not

checking whether the digit is one digit,two digit,three digit

to find the greatest number using if and condition operator and using nested if else
#include<iostream>
using namespace std;
int main()
{
int n1,n2,n3,a;
cout<<"enter three numbers";
cin>>n1>>n2>>n3;
if(n1>n2)
{
a=(n1>n3)?n1:n3;
          }
else
{
a=(n2>n3)?n2:n3;
          }
cout<<"the greatest number is "<<a;
return 0;
}

using nested  if else

#include<iostream>

using namespace std;

int main()

{

int a,b,c,g;

cout<<" enter three numbers";

cin>>a>>b>>c;

if(a>b)

{

if(a>c)

  g=a;

  else

  g=c;

}

else

          {

if(b>c)

g=b;

else

g=c;

}

cout<<" the greatest number is "<<g;

return 0;
}

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