In this example, You will learn how to find the greatest number among the three numbers in C++.

```
List is :10 20 40 => 40
List is :30 20 10 => 30
```

## Example: How to find the greatest number among three numbers in C++.

```
#include<iostream>
using namespace std;
int main() {
int a, b, c;
cout << "Enter three numbers:";
cin >> a >> b>> c;
if (a > b && a > c) {
cout << "a is greatest:" << a;
} else if (b > c) {
cout << "b is greatest:" << b;
} else {
cout << "c is greatest:" << c;
}
return 0;
}
```

#### Output:

```
Enter three numbers:33 2 4
a is greatest:33
```