From 892714920d3c1d1148a75ec65471c3113712195a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Andr=C3=A1s=20B=20Nagy?= <20251272+BNAndras@users.noreply.github.com> Date: Wed, 27 Mar 2024 06:54:43 -0700 Subject: [PATCH] Add eliud's eggs (#220) --- config.json | 8 ++++ .../eliuds-eggs/.docs/instructions.md | 8 ++++ .../eliuds-eggs/.docs/introduction.md | 47 +++++++++++++++++++ .../practice/eliuds-eggs/.meta/config.json | 19 ++++++++ .../practice/eliuds-eggs/.meta/tests.toml | 22 +++++++++ exercises/practice/eliuds-eggs/dub.sdl | 2 + .../eliuds-eggs/example/eliuds_eggs.d | 13 +++++ .../practice/eliuds-eggs/source/eliuds_eggs.d | 27 +++++++++++ 8 files changed, 146 insertions(+) create mode 100644 exercises/practice/eliuds-eggs/.docs/instructions.md create mode 100644 exercises/practice/eliuds-eggs/.docs/introduction.md create mode 100644 exercises/practice/eliuds-eggs/.meta/config.json create mode 100644 exercises/practice/eliuds-eggs/.meta/tests.toml create mode 100644 exercises/practice/eliuds-eggs/dub.sdl create mode 100644 exercises/practice/eliuds-eggs/example/eliuds_eggs.d create mode 100644 exercises/practice/eliuds-eggs/source/eliuds_eggs.d diff --git a/config.json b/config.json index 5a7d049..b1acd3e 100644 --- a/config.json +++ b/config.json @@ -271,6 +271,14 @@ "template_metaprogramming" ] }, + { + "slug": "eliuds-eggs", + "name": "Eliud's Eggs", + "uuid": "249c41d2-32a5-47d3-8175-2a62755cf7ea", + "practices": [], + "prerequisites": [], + "difficulty": 2 + }, { "slug": "etl", "name": "ETL", diff --git a/exercises/practice/eliuds-eggs/.docs/instructions.md b/exercises/practice/eliuds-eggs/.docs/instructions.md new file mode 100644 index 0000000..b0c2df5 --- /dev/null +++ b/exercises/practice/eliuds-eggs/.docs/instructions.md @@ -0,0 +1,8 @@ +# Instructions + +Your task is to count the number of 1 bits in the binary representation of a number. + +## Restrictions + +Keep your hands off that bit-count functionality provided by your standard library! +Solve this one yourself using other basic tools instead. diff --git a/exercises/practice/eliuds-eggs/.docs/introduction.md b/exercises/practice/eliuds-eggs/.docs/introduction.md new file mode 100644 index 0000000..49eaffd --- /dev/null +++ b/exercises/practice/eliuds-eggs/.docs/introduction.md @@ -0,0 +1,47 @@ +# Introduction + +Your friend Eliud inherited a farm from her grandma Tigist. +Her granny was an inventor and had a tendency to build things in an overly complicated manner. +The chicken coop has a digital display showing an encoded number representing the positions of all eggs that could be picked up. + +Eliud is asking you to write a program that shows the actual number of eggs in the coop. + +The position information encoding is calculated as follows: + +1. Scan the potential egg-laying spots and mark down a `1` for an existing egg or a `0` for an empty spot. +2. Convert the number from binary to decimal. +3. Show the result on the display. + +Example 1: + +```text +Chicken Coop: + _ _ _ _ _ _ _ +|E| |E|E| | |E| + +Resulting Binary: + 1 0 1 1 0 0 1 + +Decimal number on the display: +89 + +Actual eggs in the coop: +4 +``` + +Example 2: + +```text +Chicken Coop: + _ _ _ _ _ _ _ _ +| | | |E| | | | | + +Resulting Binary: + 0 0 0 1 0 0 0 0 + +Decimal number on the display: +16 + +Actual eggs in the coop: +1 +``` diff --git a/exercises/practice/eliuds-eggs/.meta/config.json b/exercises/practice/eliuds-eggs/.meta/config.json new file mode 100644 index 0000000..12cbf5e --- /dev/null +++ b/exercises/practice/eliuds-eggs/.meta/config.json @@ -0,0 +1,19 @@ +{ + "authors": [ + "BNAndras" + ], + "files": { + "solution": [ + "source/eliuds_eggs.d" + ], + "test": [ + "source/eliuds_eggs.d" + ], + "example": [ + "example/eliuds_eggs.d" + ] + }, + "blurb": "Help Eliud count the number of eggs in her chicken coop by counting the number of 1 bits in a binary representation.", + "source": "Christian Willner, Eric Willigers", + "source_url": "https://forum.exercism.org/t/new-exercise-suggestion-pop-count/7632/5" +} diff --git a/exercises/practice/eliuds-eggs/.meta/tests.toml b/exercises/practice/eliuds-eggs/.meta/tests.toml new file mode 100644 index 0000000..e11683c --- /dev/null +++ b/exercises/practice/eliuds-eggs/.meta/tests.toml @@ -0,0 +1,22 @@ +# This is an auto-generated file. +# +# Regenerating this file via `configlet sync` will: +# - Recreate every `description` key/value pair +# - Recreate every `reimplements` key/value pair, where they exist in problem-specifications +# - Remove any `include = true` key/value pair (an omitted `include` key implies inclusion) +# - Preserve any other key/value pair +# +# As user-added comments (using the # character) will be removed when this file +# is regenerated, comments can be added via a `comment` key. + +[559e789d-07d1-4422-9004-3b699f83bca3] +description = "0 eggs" + +[97223282-f71e-490c-92f0-b3ec9e275aba] +description = "1 egg" + +[1f8fd18f-26e9-4144-9a0e-57cdfc4f4ff5] +description = "4 eggs" + +[0c18be92-a498-4ef2-bcbb-28ac4b06cb81] +description = "13 eggs" diff --git a/exercises/practice/eliuds-eggs/dub.sdl b/exercises/practice/eliuds-eggs/dub.sdl new file mode 100644 index 0000000..05190fe --- /dev/null +++ b/exercises/practice/eliuds-eggs/dub.sdl @@ -0,0 +1,2 @@ +name "eliuds-eggs" +buildRequirements "disallowDeprecations" diff --git a/exercises/practice/eliuds-eggs/example/eliuds_eggs.d b/exercises/practice/eliuds-eggs/example/eliuds_eggs.d new file mode 100644 index 0000000..7e259fd --- /dev/null +++ b/exercises/practice/eliuds-eggs/example/eliuds_eggs.d @@ -0,0 +1,13 @@ +module eliuds_eggs; + +pure uint eggCount(immutable uint number) +{ + uint count = 0; + uint working = number; + while (working != 0) { + count += working & 1; + working = working >> 1; + } + + return count; +} diff --git a/exercises/practice/eliuds-eggs/source/eliuds_eggs.d b/exercises/practice/eliuds-eggs/source/eliuds_eggs.d new file mode 100644 index 0000000..fc9f4b7 --- /dev/null +++ b/exercises/practice/eliuds-eggs/source/eliuds_eggs.d @@ -0,0 +1,27 @@ +module eliuds_eggs; + +pure int eggCount(immutable int number) +{ + // implement this function +} + +unittest +{ + immutable int allTestsEnabled = 0; + + // 0 eggs + assert(eggCount(0) == 0); + + static if (allTestsEnabled) + { + // 1 egg + assert(eggCount(16) == 1); + + // 4 eggs + assert(eggCount(89) == 4); + + // 13 eggs + assert(eggCount(2_000_000_000) == 13); + } + +}