## C++ program to print nth even number:

A number is called a *even number* if it is divisible by *2*. The even numbers are *2, 4, 6, 8, 10, 12, 14…* etc. For example, if the value of *n* is *4*, it will print *8*.

The easiest way to solve this problem by multiplying the value of *n* by *2*. We can take the value of *n* as input from the user and print out the result.

### C++ program to find the nth even number:

Below is the complete *C++* program:

```
#include <iostream>
using namespace std;
int main()
{
int n;
cout << "Enter the value of n : " << endl;
cin >> n;
cout << "nth Even number is : " << n * 2 << endl;
}
```

Here,

*n*is an integer variable to store the value of*n*.- Using
*cin*, we are reading the user input value and storing it in*n* - The last
*cout*is used to print the*nth even number*, which is*n * 2*.

It will print output as like below:

```
Enter the value of n :
5
nth Even number is : 10
```

### C++ program to find the nth even number using a separate function:

We can also use a separate *function* to calculate the *nth even* number. For example:

```
#include <iostream>
using namespace std;
int getNthEven(int n)
{
return n * 2;
}
int main()
{
int n;
cout << "Enter the value of n : " << endl;
cin >> n;
cout << "nth Even number is : " << getNthEven(n) << endl;
}
```

Here,

*getNthEven*function takes one integer value and returns the nth even number i.e.*n * 2*

It will print similar output.

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