From 96f2d570b1a7509853a0e4a5dc9e2d9fc3f27604 Mon Sep 17 00:00:00 2001 From: Alexander Heldt Date: Sat, 1 Nov 2025 12:12:45 +0100 Subject: [PATCH] leap --- leap/.exercism/config.json | 26 ++++++++++++++++++++++ leap/.exercism/metadata.json | 1 + leap/.gitignore | 4 ++++ leap/HELP.md | 32 +++++++++++++++++++++++++++ leap/README.md | 39 +++++++++++++++++++++++++++++++++ leap/gleam.toml | 14 ++++++++++++ leap/manifest.toml | 31 ++++++++++++++++++++++++++ leap/src/leap.gleam | 7 ++++++ leap/test/leap_test.gleam | 42 ++++++++++++++++++++++++++++++++++++ 9 files changed, 196 insertions(+) create mode 100644 leap/.exercism/config.json create mode 100644 leap/.exercism/metadata.json create mode 100644 leap/.gitignore create mode 100644 leap/HELP.md create mode 100644 leap/README.md create mode 100644 leap/gleam.toml create mode 100644 leap/manifest.toml create mode 100644 leap/src/leap.gleam create mode 100644 leap/test/leap_test.gleam diff --git a/leap/.exercism/config.json b/leap/.exercism/config.json new file mode 100644 index 0000000..1e4590f --- /dev/null +++ b/leap/.exercism/config.json @@ -0,0 +1,26 @@ +{ + "authors": [ + "lpil" + ], + "contributors": [ + "kytrinyx" + ], + "files": { + "solution": [ + "src/leap.gleam" + ], + "test": [ + "test/leap_test.gleam" + ], + "example": [ + ".meta/example.gleam" + ], + "invalidator": [ + "gleam.toml", + "manifest.toml" + ] + }, + "blurb": "Determine whether a given year is a leap year.", + "source": "CodeRanch Cattle Drive, Assignment 3", + "source_url": "https://web.archive.org/web/20240907033714/https://coderanch.com/t/718816/Leap" +} diff --git a/leap/.exercism/metadata.json b/leap/.exercism/metadata.json new file mode 100644 index 0000000..d2fa3d1 --- /dev/null +++ b/leap/.exercism/metadata.json @@ -0,0 +1 @@ +{"track":"gleam","exercise":"leap","id":"0ebcfce9db514d86af3f807b47db5a1e","url":"https://exercism.org/tracks/gleam/exercises/leap","handle":"fw353qwgs","is_requester":true,"auto_approve":false} \ No newline at end of file diff --git a/leap/.gitignore b/leap/.gitignore new file mode 100644 index 0000000..170cca9 --- /dev/null +++ b/leap/.gitignore @@ -0,0 +1,4 @@ +*.beam +*.ez +build +erl_crash.dump diff --git a/leap/HELP.md b/leap/HELP.md new file mode 100644 index 0000000..d166846 --- /dev/null +++ b/leap/HELP.md @@ -0,0 +1,32 @@ +# Help + +## Running the tests + +To run the tests, run the command `gleam test` from within the exercise directory. + +## Submitting your solution + +You can submit your solution using the `exercism submit src/leap.gleam` command. +This command will upload your solution to the Exercism website and print the solution page's URL. + +It's possible to submit an incomplete solution which allows you to: + +- See how others have completed the exercise +- Request help from a mentor + +## Need to get help? + +If you'd like help solving the exercise, check the following pages: + +- 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) + +Should those resources not suffice, you could submit your (incomplete) solution to request mentoring. + +To get help if you're having trouble, you can use one of the following resources: + +- [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. \ No newline at end of file diff --git a/leap/README.md b/leap/README.md new file mode 100644 index 0000000..47ec24c --- /dev/null +++ b/leap/README.md @@ -0,0 +1,39 @@ +# Leap + +Welcome to Leap on Exercism's Gleam Track. +If you need help running the tests or submitting your code, check out `HELP.md`. + +## Introduction + +A leap year (in the Gregorian calendar) occurs: + +- In every year that is evenly divisible by 4. +- Unless the year is evenly divisible by 100, in which case it's only a leap year if the year is also evenly divisible by 400. + +Some examples: + +- 1997 was not a leap year as it's not divisible by 4. +- 1900 was not a leap year as it's not divisible by 400. +- 2000 was a leap year! + +~~~~exercism/note +For a delightful, four-minute explanation of the whole phenomenon of leap years, check out [this YouTube video](https://www.youtube.com/watch?v=xX96xng7sAE). +~~~~ + +## Instructions + +Your task is to determine whether a given year is a leap year. + +## Source + +### Created by + +- @lpil + +### Contributed to by + +- @kytrinyx + +### Based on + +CodeRanch Cattle Drive, Assignment 3 - https://web.archive.org/web/20240907033714/https://coderanch.com/t/718816/Leap \ No newline at end of file diff --git a/leap/gleam.toml b/leap/gleam.toml new file mode 100644 index 0000000..6206e29 --- /dev/null +++ b/leap/gleam.toml @@ -0,0 +1,14 @@ +name = "leap" +version = "0.1.0" + +[dependencies] +gleam_otp = "~> 0.7 or ~> 1.0" +gleam_stdlib = ">= 0.54.0 or ~> 1.0" +simplifile = "~> 1.0" +gleam_erlang = ">= 0.25.0 and < 1.0.0" +gleam_yielder = ">= 1.1.0 and < 2.0.0" +gleam_regexp = ">= 1.1.0 and < 2.0.0" +gleam_deque = ">= 1.0.0 and < 2.0.0" + +[dev-dependencies] +exercism_test_runner = "~> 1.9" diff --git a/leap/manifest.toml b/leap/manifest.toml new file mode 100644 index 0000000..7b32e9a --- /dev/null +++ b/leap/manifest.toml @@ -0,0 +1,31 @@ +# This file was generated by Gleam +# You typically do not need to edit this file + +packages = [ + { name = "argv", version = "1.0.2", build_tools = ["gleam"], requirements = [], otp_app = "argv", source = "hex", outer_checksum = "BA1FF0929525DEBA1CE67256E5ADF77A7CDDFE729E3E3F57A5BDCAA031DED09D" }, + { name = "exercism_test_runner", version = "1.9.0", 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 = "0B17BB25F2FF1E60266467C24FE0CA04005410306AA05E9A4B41B1852D72865C" }, + { name = "filepath", version = "1.1.0", build_tools = ["gleam"], requirements = ["gleam_stdlib"], otp_app = "filepath", source = "hex", outer_checksum = "67A6D15FB39EEB69DD31F8C145BB5A421790581BD6AA14B33D64D5A55DBD6587" }, + { name = "gap", version = "1.1.3", build_tools = ["gleam"], requirements = ["gleam_community_ansi", "gleam_stdlib"], otp_app = "gap", source = "hex", outer_checksum = "6EF5E3B523FDFBC317E9EA28D5163EE04744A97C007106F90207569789612291" }, + { name = "glance", version = "1.1.0", build_tools = ["gleam"], requirements = ["gleam_stdlib", "glexer"], otp_app = "glance", source = "hex", outer_checksum = "E155BA1A787FD11827048355021C0390D2FE9A518485526F631A9D472858CC6D" }, + { name = "gleam_community_ansi", version = "1.4.3", build_tools = ["gleam"], requirements = ["gleam_community_colour", "gleam_regexp", "gleam_stdlib"], otp_app = "gleam_community_ansi", source = "hex", outer_checksum = "8A62AE9CC6EA65BEA630D95016D6C07E4F9973565FA3D0DE68DC4200D8E0DD27" }, + { name = "gleam_community_colour", version = "2.0.0", build_tools = ["gleam"], requirements = ["gleam_json", "gleam_stdlib"], otp_app = "gleam_community_colour", source = "hex", outer_checksum = "FDD6AC62C6EC8506C005949A4FCEF032038191D5EAAEC3C9A203CD53AE956ACA" }, + { name = "gleam_deque", version = "1.0.0", build_tools = ["gleam"], requirements = ["gleam_stdlib"], otp_app = "gleam_deque", source = "hex", outer_checksum = "64D77068931338CF0D0CB5D37522C3E3CCA7CB7D6C5BACB41648B519CC0133C7" }, + { name = "gleam_erlang", version = "0.34.0", build_tools = ["gleam"], requirements = ["gleam_stdlib"], otp_app = "gleam_erlang", source = "hex", outer_checksum = "0C38F2A128BAA0CEF17C3000BD2097EB80634E239CE31A86400C4416A5D0FDCC" }, + { name = "gleam_json", version = "2.3.0", build_tools = ["gleam"], requirements = ["gleam_stdlib"], otp_app = "gleam_json", source = "hex", outer_checksum = "C55C5C2B318533A8072D221C5E06E5A75711C129E420DD1CE463342106012E5D" }, + { name = "gleam_otp", version = "0.16.1", build_tools = ["gleam"], requirements = ["gleam_erlang", "gleam_stdlib"], otp_app = "gleam_otp", source = "hex", outer_checksum = "50DA1539FC8E8FA09924EB36A67A2BBB0AD6B27BCDED5A7EF627057CF69D035E" }, + { name = "gleam_regexp", version = "1.1.0", build_tools = ["gleam"], requirements = ["gleam_stdlib"], otp_app = "gleam_regexp", source = "hex", outer_checksum = "7F5E0C0BBEB3C58E57C9CB05FA9002F970C85AD4A63BA1E55CBCB35C15809179" }, + { name = "gleam_stdlib", version = "0.55.0", build_tools = ["gleam"], requirements = [], otp_app = "gleam_stdlib", source = "hex", outer_checksum = "32D8F4AE03771516950047813A9E359249BD9FBA5C33463FDB7B953D6F8E896B" }, + { name = "gleam_yielder", version = "1.1.0", build_tools = ["gleam"], requirements = ["gleam_stdlib"], otp_app = "gleam_yielder", source = "hex", outer_checksum = "8E4E4ECFA7982859F430C57F549200C7749823C106759F4A19A78AEA6687717A" }, + { name = "glexer", version = "2.2.1", build_tools = ["gleam"], requirements = ["gleam_stdlib"], otp_app = "glexer", source = "hex", outer_checksum = "5C235CBDF4DA5203AD5EAB1D6D8B456ED8162C5424FE2309CFFB7EF438B7C269" }, + { name = "simplifile", version = "1.7.0", build_tools = ["gleam"], requirements = ["filepath", "gleam_stdlib"], otp_app = "simplifile", source = "hex", outer_checksum = "1D5DFA3A2F9319EC85825F6ED88B8E449F381B0D55A62F5E61424E748E7DDEB0" }, +] + +[requirements] +exercism_test_runner = { version = "~> 1.9" } +gleam_deque = { version = ">= 1.0.0 and < 2.0.0" } +gleam_erlang = { version = ">= 0.25.0 and < 1.0.0" } +gleam_otp = { version = "~> 0.7 or ~> 1.0" } +gleam_regexp = { version = ">= 1.1.0 and < 2.0.0" } +gleam_stdlib = { version = ">= 0.54.0 or ~> 1.0" } +gleam_yielder = { version = ">= 1.1.0 and < 2.0.0" } +simplifile = { version = "~> 1.0" } diff --git a/leap/src/leap.gleam b/leap/src/leap.gleam new file mode 100644 index 0000000..504383c --- /dev/null +++ b/leap/src/leap.gleam @@ -0,0 +1,7 @@ +pub fn is_leap_year(year: Int) -> Bool { + let divisible_by_4 = year % 4 == 0 + let divisible_by_100 = year % 100 == 0 + let divisible_by_400 = year % 400 == 0 + + { divisible_by_4 && !divisible_by_100 } || divisible_by_400 +} diff --git a/leap/test/leap_test.gleam b/leap/test/leap_test.gleam new file mode 100644 index 0000000..568ca12 --- /dev/null +++ b/leap/test/leap_test.gleam @@ -0,0 +1,42 @@ +import exercism/test_runner +import leap + +pub fn main() { + test_runner.main() +} + +pub fn year_not_divisible_by_4_in_common_year_test() { + let assert False = leap.is_leap_year(2015) +} + +pub fn year_divisible_by_2_not_divisible_by_4_in_common_year_test() { + let assert False = leap.is_leap_year(1970) +} + +pub fn year_divisible_by_4_not_divisible_by_100_in_leap_year_test() { + let assert True = leap.is_leap_year(1996) +} + +pub fn year_divisible_by_4_and_5_is_still_a_leap_year_test() { + let assert True = leap.is_leap_year(1960) +} + +pub fn year_divisible_by_100_not_divisible_by_400_in_common_year_test() { + let assert False = leap.is_leap_year(2100) +} + +pub fn year_divisible_by_100_but_not_by_3_is_still_not_a_leap_year_test() { + let assert False = leap.is_leap_year(1900) +} + +pub fn year_divisible_by_400_is_leap_year_test() { + let assert True = leap.is_leap_year(2000) +} + +pub fn year_divisible_by_400_but_not_by_125_is_still_a_leap_year_test() { + let assert True = leap.is_leap_year(2400) +} + +pub fn year_divisible_by_200_not_divisible_by_400_in_common_year_test() { + let assert False = leap.is_leap_year(1800) +}