---
title: "Discussion on \"Advent of Code 2020: Day 6 (Ruby solution)\" | Hashnode"
description: "Discussion on \"Advent of Code 2020: Day 6 (Ruby solution)\". This time input file contains many groups of entries. Entries are separated with a single newline character while groups are separated with two of them.\nYour job in the first puzzle is to find how many unique letters occur in each group and count the..."
url: "https://hashnode.com/posts/advent-of-code-2020-day-6-ruby-solution/5fcd3a05f4006d0b1bedfd53"
---

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# [Advent of Code 2020: Day 6 (Ruby solution)](https://rubywizards.com/advent-of-code-2020-day-6-ruby-solution?utm_source=hashnode&utm_medium=feed)

This time input file contains many groups of entries. Entries are separated with a single newline character while groups are separated with two of them. Your job in the first puzzle is to find how many unique letters occur in each group and count the...

Dec 6, 2020 · 1 min read · rubywizards.com  
Updated Apr 13, 2021  
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-   [#ruby](https://hashnode.com/tag/ruby)

## Written by

[Piotr Jurewicz](https://hashnode.com/@pjurewicz)

@pjurewicz · Łódź, Poland

  
[View profile](https://hashnode.com/@pjurewicz)

ruby on rails developer

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