`1` ```exercism fetch haskell alphametics ```

# Alphametics

Write a function to solve alphametics puzzles.

Alphametics is a puzzle where letters in words are replaced with numbers.

For example `SEND + MORE = MONEY`:

 ```1 2 3 4``` ``` S E N D M O R E + ----------- M O N E Y ```

Replacing these with valid numbers gives:

 ```1 2 3 4``` ``` 9 5 6 7 1 0 8 5 + ----------- 1 0 6 5 2 ```

This is correct because every letter is replaced by a different number and the words, translated into numbers, then make a valid sum.

Each letter must represent a different digit, and the leading digit of a multi-digit number must not be zero.

Write a function to solve alphametics puzzles.

## Hints

You can solve this exercise with a brute force algorithm, but this will possibly have a poor runtime performance. Try to find a more sophisticated solution. Hint: You could try the column-wise addition algorithm that is usually taught in high school.

## Getting Started

For installation and learning resources, refer to the exercism help page.

## Running the tests

To run the test suite, execute the following command:

 `1` ```stack test ```

#### If you get an error message like this...

 `1` ```No .cabal file found in directory ```

You are probably running an old stack version and need to upgrade it.

#### Otherwise, if you get an error message like this...

 ```1 2``` ```No compiler found, expected minor version match with... Try running "stack setup" to install the correct GHC... ```

Just do as it says and it will download and install the correct compiler version:

 `1` ```stack setup ```

## Running GHCi

If you want to play with your solution in GHCi, just run the command:

 `1` ```stack ghci ```

## Feedback, Issues, Pull Requests

The exercism/haskell repository on GitHub is the home for all of the Haskell exercises.

If you have feedback about an exercise, or want to help implementing a new one, head over there and create an issue. We'll do our best to help you!

## Submitting Incomplete Solutions

It's possible to submit an incomplete solution so you can see how others have completed the exercise.