# Solution: How many numbers are equal?

The program should make a few comparisons. For three input numbers, there are two possible cases:

1. All three numbers are equal,
2. Only two numbers are equal, and
3. All numbers are different.

## Code

Here is the solution with explicit comparisons.

```my \$n1 = prompt 'Enter number 1: ';
my \$n2 = prompt 'Enter number 2: ';
my \$n3 = prompt 'Enter number 3: ';

if \$n1 == \$n2 == \$n3 {
say 3;
}
elsif \$n1 == \$n2 || \$n2 == \$n3 || \$n1 == \$n3 {
say 2;
}
else {
say 0;
}
```

🦋 Find the program in the file how-many-equal-numbers.raku.

## Output

``````\$ raku exercises/conditional-checks/how-many-equal-numbers.raku 0 0 0
Enter number 1: 14
Enter number 2: 8
Enter number 3: 8
2

\$ raku exercises/conditional-checks/how-many-equal-numbers.raku
Enter number 1: 15
Enter number 2: 15
Enter number 3: 15
3

\$ raku exercises/conditional-checks/how-many-equal-numbers.raku
Enter number 1: 4
Enter number 2: 6
Enter number 3: 8
0
``````

1. Note that you can compare three numbers in a single expression: `\$n1 == \$n2 == \$n3`.