TheBeauty | Topcoder Archive

Problem Statement

There is nothing more beautiful than just an integer number.

The beauty of an integer is the number of distinct digits it contains in decimal notation.

You are given an integer number n. Return the beauty of this number.

Definition

Class:: TheBeauty
Method:: find
Parameters:: int
Returns:: int
Method signature:: int find(int n)
(be sure your method is public)

Constraints

n will be between 1 and 1,000,000,000, inclusive.

Examples

```
7
```
```
Returns: 1
```
Just one digit.
```
100
```
```
Returns: 2
```
Two distinct digits - 0 and 1.
```
123456789
```
```
Returns: 9
```
All the digits are different.
```
1000000000
```
```
Returns: 2
```
```
932400154
```
```
Returns: 7
```

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