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# Largest Series Product

Given a string of digits, calculate the largest product for a contiguous
substring of digits of length n.

For example, for the input `'1027839564'`, the largest product for a
series of 3 digits is 270 (9 * 5 * 6), and the largest product for a
series of 5 digits is 7560 (7 * 8 * 3 * 9 * 5).

Note that these series are only required to occupy *adjacent positions*
in the input; the digits need not be *numerically consecutive*.

For the input `'73167176531330624919225119674426574742355349194934'`,
the largest product for a series of 6 digits is 23520.

## Setup

Follow the setup instructions for Crystal here:

http://exercism.io/languages/crystal

More help installing can be found here:

http://crystal-lang.org/docs/installation/index.html

## Making the Test Suit Pass

Execute the tests with:

```bash
$ crystal spec
```

In each test suite all but the first test have been skipped.

Once you get a test passing, you can unskip the next one by changing `pending` to `it`.

## Source

A variation on Problem 8 at Project Euler [http://projecteuler.net/problem=8](http://projecteuler.net/problem=8)

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

Version data entries

181 entries across 181 versions & 1 rubygems

Version Path
trackler-2.2.1.180 tracks/crystal/exercises/largest-series-product/README.md
trackler-2.2.1.179 tracks/crystal/exercises/largest-series-product/README.md
trackler-2.2.1.178 tracks/crystal/exercises/largest-series-product/README.md
trackler-2.2.1.177 tracks/crystal/exercises/largest-series-product/README.md
trackler-2.2.1.176 tracks/crystal/exercises/largest-series-product/README.md
trackler-2.2.1.175 tracks/crystal/exercises/largest-series-product/README.md
trackler-2.2.1.174 tracks/crystal/exercises/largest-series-product/README.md
trackler-2.2.1.173 tracks/crystal/exercises/largest-series-product/README.md
trackler-2.2.1.172 tracks/crystal/exercises/largest-series-product/README.md
trackler-2.2.1.171 tracks/crystal/exercises/largest-series-product/README.md
trackler-2.2.1.170 tracks/crystal/exercises/largest-series-product/README.md
trackler-2.2.1.169 tracks/crystal/exercises/largest-series-product/README.md
trackler-2.2.1.167 tracks/crystal/exercises/largest-series-product/README.md
trackler-2.2.1.166 tracks/crystal/exercises/largest-series-product/README.md
trackler-2.2.1.165 tracks/crystal/exercises/largest-series-product/README.md
trackler-2.2.1.164 tracks/crystal/exercises/largest-series-product/README.md
trackler-2.2.1.163 tracks/crystal/exercises/largest-series-product/README.md
trackler-2.2.1.162 tracks/crystal/exercises/largest-series-product/README.md
trackler-2.2.1.161 tracks/crystal/exercises/largest-series-product/README.md
trackler-2.2.1.160 tracks/crystal/exercises/largest-series-product/README.md