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*.beam | ||
*.ez | ||
build | ||
erl_crash.dump |
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# Help | ||
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## Running the tests | ||
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To run the tests, run the command `gleam test` from within the exercise directory. | ||
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## Submitting your solution | ||
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You can submit your solution using the `exercism submit src/eliuds_eggs.gleam` command. | ||
This command will upload your solution to the Exercism website and print the solution page's URL. | ||
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It's possible to submit an incomplete solution which allows you to: | ||
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- See how others have completed the exercise | ||
- Request help from a mentor | ||
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## Need to get help? | ||
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If you'd like help solving the exercise, check the following pages: | ||
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- The [Gleam track's documentation](https://exercism.org/docs/tracks/gleam) | ||
- The [Gleam track's programming category on the forum](https://forum.exercism.org/c/programming/gleam) | ||
- [Exercism's programming category on the forum](https://forum.exercism.org/c/programming/5) | ||
- The [Frequently Asked Questions](https://exercism.org/docs/using/faqs) | ||
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Should those resources not suffice, you could submit your (incomplete) solution to request mentoring. | ||
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To get help if you're having trouble, you can use one of the following resources: | ||
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- [gleam.run](https://gleam.run/documentation/) is the gleam official documentation. | ||
- [Discord](https://discord.gg/Fm8Pwmy) is the discord channel. | ||
- [StackOverflow](https://stackoverflow.com/questions/tagged/gleam) can be used to search for your problem and see if it has been answered already. You can also ask and answer questions. |
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# Eliud's Eggs | ||
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Welcome to Eliud's Eggs on Exercism's Gleam Track. | ||
If you need help running the tests or submitting your code, check out `HELP.md`. | ||
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## Introduction | ||
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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. | ||
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Eliud is asking you to write a program that shows the actual number of eggs in the coop. | ||
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The position information encoding is calculated as follows: | ||
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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. | ||
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Example 1: | ||
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```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 | ||
``` | ||
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Example 2: | ||
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```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 | ||
``` | ||
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## Instructions | ||
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Your task is to count the number of 1 bits in the binary representation of a number. | ||
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## Restrictions | ||
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Keep your hands off that bit-count functionality provided by your standard library! | ||
Solve this one yourself using other basic tools instead. | ||
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## Source | ||
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### Created by | ||
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- @BNAndras | ||
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### Based on | ||
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Christian Willner, Eric Willigers - https://forum.exercism.org/t/new-exercise-suggestion-eliuds-eggs/7632/5 |
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name = "eliuds_eggs" | ||
version = "0.1.0" | ||
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[dependencies] | ||
gleam_bitwise = "~> 1.2" | ||
gleam_otp = "~> 0.7 or ~> 1.0" | ||
gleam_stdlib = "~> 0.32 or ~> 1.0" | ||
simplifile = "~> 1.0" | ||
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[dev-dependencies] | ||
exercism_test_runner = "~> 1.4" |
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# This file was generated by Gleam | ||
# You typically do not need to edit this file | ||
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packages = [ | ||
{ name = "argv", version = "1.0.1", build_tools = ["gleam"], requirements = [], otp_app = "argv", source = "hex", outer_checksum = "A6E9009E50BBE863EB37D963E4315398D41A3D87D0075480FC244125808F964A" }, | ||
{ name = "exercism_test_runner", version = "1.7.0", build_tools = ["gleam"], requirements = ["argv", "gap", "glance", "gleam_community_ansi", "gleam_erlang", "gleam_json", "gleam_stdlib", "simplifile"], otp_app = "exercism_test_runner", source = "hex", outer_checksum = "2FC1BADB19BEC2AE77BFD2D3A606A014C85412A7B874CAFC4BA8CF04B0B257CD" }, | ||
{ name = "gap", version = "1.1.0", build_tools = ["gleam"], requirements = ["gleam_community_ansi", "gleam_stdlib"], otp_app = "gap", source = "hex", outer_checksum = "2EE1B0A17E85CF73A0C1D29DA315A2699117A8F549C8E8D89FA8261BE41EDEB1" }, | ||
{ name = "glance", version = "0.8.2", build_tools = ["gleam"], requirements = ["gleam_stdlib", "glexer"], otp_app = "glance", source = "hex", outer_checksum = "ACF09457E8B564AD7A0D823DAFDD326F58263C01ACB0D432A9BEFDEDD1DA8E73" }, | ||
{ name = "gleam_bitwise", version = "1.3.1", build_tools = ["gleam"], requirements = [], otp_app = "gleam_bitwise", source = "hex", outer_checksum = "B36E1D3188D7F594C7FD4F43D0D2CE17561DE896202017548578B16FE1FE9EFC" }, | ||
{ name = "gleam_community_ansi", version = "1.4.0", build_tools = ["gleam"], requirements = ["gleam_community_colour", "gleam_stdlib"], otp_app = "gleam_community_ansi", source = "hex", outer_checksum = "FE79E08BF97009729259B6357EC058315B6FBB916FAD1C2FF9355115FEB0D3A4" }, | ||
{ name = "gleam_community_colour", version = "1.3.0", build_tools = ["gleam"], requirements = ["gleam_stdlib"], otp_app = "gleam_community_colour", source = "hex", outer_checksum = "A49A5E3AE8B637A5ACBA80ECB9B1AFE89FD3D5351FF6410A42B84F666D40D7D5" }, | ||
{ name = "gleam_erlang", version = "0.24.0", build_tools = ["gleam"], requirements = ["gleam_stdlib"], otp_app = "gleam_erlang", source = "hex", outer_checksum = "26BDB52E61889F56A291CB34167315780EE4AA20961917314446542C90D1C1A0" }, | ||
{ name = "gleam_json", version = "1.0.0", build_tools = ["gleam"], requirements = ["gleam_stdlib", "thoas"], otp_app = "gleam_json", source = "hex", outer_checksum = "8B197DD5D578EA6AC2C0D4BDC634C71A5BCA8E7DB5F47091C263ECB411A60DF3" }, | ||
{ name = "gleam_otp", version = "0.10.0", build_tools = ["gleam"], requirements = ["gleam_erlang", "gleam_stdlib"], otp_app = "gleam_otp", source = "hex", outer_checksum = "0B04FE915ACECE539B317F9652CAADBBC0F000184D586AAAF2D94C100945D72B" }, | ||
{ name = "gleam_stdlib", version = "0.36.0", build_tools = ["gleam"], requirements = [], otp_app = "gleam_stdlib", source = "hex", outer_checksum = "C0D14D807FEC6F8A08A7C9EF8DFDE6AE5C10E40E21325B2B29365965D82EB3D4" }, | ||
{ name = "glexer", version = "0.7.0", build_tools = ["gleam"], requirements = ["gleam_stdlib"], otp_app = "glexer", source = "hex", outer_checksum = "4484942A465482A0A100936E1E5F12314DB4B5AC0D87575A7B9E9062090B96BE" }, | ||
{ name = "simplifile", version = "1.5.0", build_tools = ["gleam"], requirements = ["gleam_stdlib"], otp_app = "simplifile", source = "hex", outer_checksum = "EB9AA8E65E5C1E3E0FDCFC81BC363FD433CB122D7D062750FFDF24DE4AC40116" }, | ||
{ name = "thoas", version = "0.4.1", build_tools = ["rebar3"], requirements = [], otp_app = "thoas", source = "hex", outer_checksum = "4918D50026C073C4AB1388437132C77A6F6F7C8AC43C60C13758CC0ADCE2134E" }, | ||
] | ||
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[requirements] | ||
exercism_test_runner = { version = "~> 1.4" } | ||
gleam_bitwise = { version = "~> 1.2" } | ||
gleam_otp = { version = "~> 0.7 or ~> 1.0" } | ||
gleam_stdlib = { version = "~> 0.32 or ~> 1.0" } | ||
simplifile = { version = "~> 1.0" } |
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import gleam/int | ||
import gleam/result | ||
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pub fn egg_count(number: Int) -> Int { | ||
int.digits(number, 2) | ||
|> result.unwrap([]) | ||
|> int.sum | ||
} |
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import eliuds_eggs | ||
import exercism/should | ||
import exercism/test_runner | ||
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pub fn main() { | ||
test_runner.main() | ||
} | ||
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pub fn zero_eggs_test() { | ||
eliuds_eggs.egg_count(0) | ||
|> should.equal(0) | ||
} | ||
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pub fn one_egg_test() { | ||
eliuds_eggs.egg_count(16) | ||
|> should.equal(1) | ||
} | ||
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pub fn four_eggs_test() { | ||
eliuds_eggs.egg_count(89) | ||
|> should.equal(4) | ||
} | ||
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pub fn thirteen_eggs_test() { | ||
eliuds_eggs.egg_count(2_000_000_000) | ||
|> should.equal(13) | ||
} |