Some solutions for the julia path

julia/leap/.exercism/config.json

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+{
+  "authors": [
+    "andrej-makarov-skrt"
+  ],
+  "contributors": [
+    "cmcaine",
+    "SaschaMann"
+  ],
+  "files": {
+    "solution": [
+      "leap.jl"
+    ],
+    "test": [
+      "runtests.jl"
+    ],
+    "example": [
+      ".meta/example.jl"
+    ]
+  },
+  "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"
+}

julia/leap/.exercism/metadata.json

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+{"track":"julia","exercise":"leap","id":"d3610687536242a2866418473aae6ee8","url":"https://exercism.org/tracks/julia/exercises/leap","handle":"Kimawari","is_requester":true,"auto_approve":false}

julia/leap/HELP.md

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+# Help
+
+## Running the tests
+
+To run the tests, run this command from within the exercise directory:
+
+```bash
+$ julia runtests.jl
+```
+
+## Submitting your solution
+
+You can submit your solution using the `exercism submit leap.jl` 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 [Julia track's documentation](https://exercism.org/docs/tracks/julia)
+- The [Julia track's programming category on the forum](https://forum.exercism.org/c/programming/julia)
+- [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, we recommend that you submit your code and request mentoring :)
+
+If you don't want to do that for whatever reason, then you can find the wider Julia community channels [here](https://julialang.org/community/).

julia/leap/README.md

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+# Leap
+
+Welcome to Leap on Exercism's Julia 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
+
+- @andrej-makarov-skrt
+
+### Contributed to by
+
+- @cmcaine
+- @SaschaMann
+
+### Based on
+
+CodeRanch Cattle Drive, Assignment 3 - https://web.archive.org/web/20240907033714/https://coderanch.com/t/718816/Leap

julia/leap/leap.jl

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+"""
+    is_leap_year(year)
+
+Return `true` if `year` is a leap year in the gregorian calendar.
+
+"""
+function divisible_by_4(year)
+    return year % 4 == 0 
+end
+
+function divisible_by_100_and_400(year)
+    return year % 100 != 0 || year % 400 == 0
+end
+
+
+function is_leap_year(year)
+    return divisible_by_4(year) && divisible_by_100_and_400(year)
+end

julia/leap/runtests.jl

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+using Test
+
+include("leap.jl")
+
+@testset verbose = true "tests" begin
+    @testset "Year not divisible by 4: common year" begin
+        @test !is_leap_year(2015)
+    end
+
+    @testset "Year divisible by 2, not divisible by 4: common year" begin
+        @test !is_leap_year(1970)
+    end
+
+    @testset "Year divisible by 4, not divisible by 100: leap year" begin
+        @test is_leap_year(1996)
+    end
+
+    @testset "Year divisible by 4 and 5: leap year" begin
+        @test is_leap_year(1960)
+    end
+
+    @testset "Year divisible by 4, not divisible by 100: leap year" begin
+        @test is_leap_year(2016)
+    end
+
+    @testset "Year divisible by 100, not divisible by 400: common year" begin
+        @test !is_leap_year(2100)
+    end
+
+    @testset "Year divisible by 100 but not by 3: common year" begin
+        @test !is_leap_year(1900)
+    end
+
+    @testset "Year divisible by 400: leap year" begin
+        @test is_leap_year(2000)
+    end
+
+    @testset "Year divisible by 400 but not by 125: leap year" begin
+        @test is_leap_year(2400)
+    end
+
+    @testset "Year divisible by 200, not divisible by 400: common year" begin
+        @test !is_leap_year(1800)
+    end
+end