diff --git a/config.json b/config.json index ea8f340b..88ed017b 100644 --- a/config.json +++ b/config.json @@ -212,6 +212,14 @@ "stacks" ] }, + { + "slug": "sublist", + "name": "Sublist", + "uuid": "fe7d5efd-dae8-4d49-9604-e029da900ca1", + "practices": [], + "prerequisites": [], + "difficulty": 2 + }, { "slug": "word-count", "name": "Word Count", diff --git a/exercises/practice/sublist/.docs/instructions.md b/exercises/practice/sublist/.docs/instructions.md new file mode 100644 index 00000000..7535931a --- /dev/null +++ b/exercises/practice/sublist/.docs/instructions.md @@ -0,0 +1,25 @@ +# Instructions + +Given any two lists `A` and `B`, determine if: + +- List `A` is equal to list `B`; or +- List `A` contains list `B` (`A` is a superlist of `B`); or +- List `A` is contained by list `B` (`A` is a sublist of `B`); or +- None of the above is true, thus lists `A` and `B` are unequal + +Specifically, list `A` is equal to list `B` if both lists have the same values in the same order. +List `A` is a superlist of `B` if `A` contains a sub-sequence of values equal to `B`. +List `A` is a sublist of `B` if `B` contains a sub-sequence of values equal to `A`. + +Examples: + +- If `A = []` and `B = []` (both lists are empty), then `A` and `B` are equal +- If `A = [1, 2, 3]` and `B = []`, then `A` is a superlist of `B` +- If `A = []` and `B = [1, 2, 3]`, then `A` is a sublist of `B` +- If `A = [1, 2, 3]` and `B = [1, 2, 3, 4, 5]`, then `A` is a sublist of `B` +- If `A = [3, 4, 5]` and `B = [1, 2, 3, 4, 5]`, then `A` is a sublist of `B` +- If `A = [3, 4]` and `B = [1, 2, 3, 4, 5]`, then `A` is a sublist of `B` +- If `A = [1, 2, 3]` and `B = [1, 2, 3]`, then `A` and `B` are equal +- If `A = [1, 2, 3, 4, 5]` and `B = [2, 3, 4]`, then `A` is a superlist of `B` +- If `A = [1, 2, 4]` and `B = [1, 2, 3, 4, 5]`, then `A` and `B` are unequal +- If `A = [1, 2, 3]` and `B = [1, 3, 2]`, then `A` and `B` are unequal diff --git a/exercises/practice/sublist/.meta/config.json b/exercises/practice/sublist/.meta/config.json new file mode 100644 index 00000000..3eb8198c --- /dev/null +++ b/exercises/practice/sublist/.meta/config.json @@ -0,0 +1,17 @@ +{ + "authors": [ + "BNAndras" + ], + "files": { + "solution": [ + "lib/sublist.dart" + ], + "test": [ + "test/sublist_test.dart" + ], + "example": [ + ".meta/lib/example.dart" + ] + }, + "blurb": "Write a function to determine if a list is a sublist of another list." +} diff --git a/exercises/practice/sublist/.meta/lib/example.dart b/exercises/practice/sublist/.meta/lib/example.dart new file mode 100644 index 00000000..1e940344 --- /dev/null +++ b/exercises/practice/sublist/.meta/lib/example.dart @@ -0,0 +1,46 @@ +import 'package:collection/collection.dart'; + +enum Classification { equal, unequal, sublist, superlist } + +class Sublist { + Function eq = const ListEquality().equals; + + Classification sublist(List listOne, List listTwo) { + if (listOne.isEmpty && listTwo.isEmpty) { + return Classification.equal; + } else if (listOne.isEmpty) { + return Classification.sublist; + } else if (listTwo.isEmpty) { + return Classification.superlist; + } + + if (isSublist(listOne, listTwo)) { + return listOne.length < listTwo.length + ? Classification.sublist + : Classification.equal; + } + + if (isSublist(listTwo, listOne)) { + return listOne.length > listTwo.length + ? Classification.superlist + : Classification.equal; + } + + return Classification.unequal; + } + + bool isSublist(List listOne, List listTwo) { + if (listOne.length > listTwo.length) { + return false; + } + + for (int i = 0; i <= listTwo.length - listOne.length; i++) { + final fragment = listTwo.slice(i, i + listOne.length); + if (eq(fragment, listOne)) { + return true; + } + } + + return false; + } +} diff --git a/exercises/practice/sublist/.meta/tests.toml b/exercises/practice/sublist/.meta/tests.toml new file mode 100644 index 00000000..de5020a9 --- /dev/null +++ b/exercises/practice/sublist/.meta/tests.toml @@ -0,0 +1,64 @@ +# 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. + +[97319c93-ebc5-47ab-a022-02a1980e1d29] +description = "empty lists" + +[de27dbd4-df52-46fe-a336-30be58457382] +description = "empty list within non empty list" + +[5487cfd1-bc7d-429f-ac6f-1177b857d4fb] +description = "non empty list contains empty list" + +[1f390b47-f6b2-4a93-bc23-858ba5dda9a6] +description = "list equals itself" + +[7ed2bfb2-922b-4363-ae75-f3a05e8274f5] +description = "different lists" + +[3b8a2568-6144-4f06-b0a1-9d266b365341] +description = "false start" + +[dc39ed58-6311-4814-be30-05a64bc8d9b1] +description = "consecutive" + +[d1270dab-a1ce-41aa-b29d-b3257241ac26] +description = "sublist at start" + +[81f3d3f7-4f25-4ada-bcdc-897c403de1b6] +description = "sublist in middle" + +[43bcae1e-a9cf-470e-923e-0946e04d8fdd] +description = "sublist at end" + +[76cf99ed-0ff0-4b00-94af-4dfb43fe5caa] +description = "at start of superlist" + +[b83989ec-8bdf-4655-95aa-9f38f3e357fd] +description = "in middle of superlist" + +[26f9f7c3-6cf6-4610-984a-662f71f8689b] +description = "at end of superlist" + +[0a6db763-3588-416a-8f47-76b1cedde31e] +description = "first list missing element from second list" + +[83ffe6d8-a445-4a3c-8795-1e51a95e65c3] +description = "second list missing element from first list" + +[7bc76cb8-5003-49ca-bc47-cdfbe6c2bb89] +description = "first list missing additional digits from second list" + +[0d7ee7c1-0347-45c8-9ef5-b88db152b30b] +description = "order matters to a list" + +[5f47ce86-944e-40f9-9f31-6368aad70aa6] +description = "same digits but different numbers" diff --git a/exercises/practice/sublist/analysis_options.yaml b/exercises/practice/sublist/analysis_options.yaml new file mode 100644 index 00000000..c06363d6 --- /dev/null +++ b/exercises/practice/sublist/analysis_options.yaml @@ -0,0 +1,18 @@ +analyzer: + strong-mode: + implicit-casts: false + implicit-dynamic: false + errors: + unused_element: error + unused_import: error + unused_local_variable: error + dead_code: error + +linter: + rules: + # Error Rules + - avoid_relative_lib_imports + - avoid_types_as_parameter_names + - literal_only_boolean_expressions + - no_adjacent_strings_in_list + - valid_regexps diff --git a/exercises/practice/sublist/lib/sublist.dart b/exercises/practice/sublist/lib/sublist.dart new file mode 100644 index 00000000..f76b15f8 --- /dev/null +++ b/exercises/practice/sublist/lib/sublist.dart @@ -0,0 +1,5 @@ +// Implement the Classification enum. + +class Sublist { + // your code here... +} diff --git a/exercises/practice/sublist/pubspec.yaml b/exercises/practice/sublist/pubspec.yaml new file mode 100644 index 00000000..f880f835 --- /dev/null +++ b/exercises/practice/sublist/pubspec.yaml @@ -0,0 +1,5 @@ +name: 'sublist' +environment: + sdk: '>=3.2.0 <4.0.0' +dev_dependencies: + test: '<2.0.0' diff --git a/exercises/practice/sublist/test/sublist_test.dart b/exercises/practice/sublist/test/sublist_test.dart new file mode 100644 index 00000000..0e3b2eed --- /dev/null +++ b/exercises/practice/sublist/test/sublist_test.dart @@ -0,0 +1,152 @@ +import 'package:sublist/sublist.dart'; +import 'package:test/test.dart'; + +void main() { + final sublist = Sublist(); + + group('Sublist', () { + test('empty lists', () { + List listOne = []; + List listTwo = []; + final result = sublist.sublist(listOne, listTwo); + final expected = Classification.equal; + expect(result, equals(expected)); + }, skip: false); + + test('empty list within non empty list', () { + List listOne = []; + List listTwo = [1, 2, 3]; + final result = sublist.sublist(listOne, listTwo); + final expected = Classification.sublist; + expect(result, equals(expected)); + }, skip: true); + + test('non empty list contains empty list', () { + List listOne = [1, 2, 3]; + List listTwo = []; + final result = sublist.sublist(listOne, listTwo); + final expected = Classification.superlist; + expect(result, equals(expected)); + }, skip: true); + + test('list equals itself', () { + List listOne = [1, 2, 3]; + List listTwo = [1, 2, 3]; + final result = sublist.sublist(listOne, listTwo); + final expected = Classification.equal; + expect(result, equals(expected)); + }, skip: true); + + test('different lists', () { + List listOne = [1, 2, 3]; + List listTwo = [2, 3, 4]; + final result = sublist.sublist(listOne, listTwo); + final expected = Classification.unequal; + expect(result, equals(expected)); + }, skip: true); + + test('false start', () { + List listOne = [1, 2, 5]; + List listTwo = [0, 1, 2, 3, 1, 2, 5, 6]; + final result = sublist.sublist(listOne, listTwo); + final expected = Classification.sublist; + expect(result, equals(expected)); + }, skip: true); + + test('consecutive', () { + List listOne = [1, 1, 2]; + List listTwo = [0, 1, 1, 1, 2, 1, 2]; + final result = sublist.sublist(listOne, listTwo); + final expected = Classification.sublist; + expect(result, equals(expected)); + }, skip: true); + + test('sublist at start', () { + List listOne = [0, 1, 2]; + List listTwo = [0, 1, 2, 3, 4, 5]; + final result = sublist.sublist(listOne, listTwo); + final expected = Classification.sublist; + expect(result, equals(expected)); + }, skip: true); + + test('sublist in middle', () { + List listOne = [2, 3, 4]; + List listTwo = [0, 1, 2, 3, 4, 5]; + final result = sublist.sublist(listOne, listTwo); + final expected = Classification.sublist; + expect(result, equals(expected)); + }, skip: true); + + test('sublist at end', () { + List listOne = [3, 4, 5]; + List listTwo = [0, 1, 2, 3, 4, 5]; + final result = sublist.sublist(listOne, listTwo); + final expected = Classification.sublist; + expect(result, equals(expected)); + }, skip: true); + + test('at start of superlist', () { + List listOne = [0, 1, 2, 3, 4, 5]; + List listTwo = [0, 1, 2]; + final result = sublist.sublist(listOne, listTwo); + final expected = Classification.superlist; + expect(result, equals(expected)); + }, skip: true); + + test('in middle of superlist', () { + List listOne = [0, 1, 2, 3, 4, 5]; + List listTwo = [2, 3]; + final result = sublist.sublist(listOne, listTwo); + final expected = Classification.superlist; + expect(result, equals(expected)); + }, skip: true); + + test('at end of superlist', () { + List listOne = [0, 1, 2, 3, 4, 5]; + List listTwo = [3, 4, 5]; + final result = sublist.sublist(listOne, listTwo); + final expected = Classification.superlist; + expect(result, equals(expected)); + }, skip: true); + + test('first list missing element from second list', () { + List listOne = [1, 3]; + List listTwo = [1, 2, 3]; + final result = sublist.sublist(listOne, listTwo); + final expected = Classification.unequal; + expect(result, equals(expected)); + }, skip: true); + + test('second list missing element from first list', () { + List listOne = [1, 2, 3]; + List listTwo = [1, 3]; + final result = sublist.sublist(listOne, listTwo); + final expected = Classification.unequal; + expect(result, equals(expected)); + }, skip: true); + + test('first list missing additional digits from second list', () { + List listOne = [1, 2]; + List listTwo = [1, 22]; + final result = sublist.sublist(listOne, listTwo); + final expected = Classification.unequal; + expect(result, equals(expected)); + }, skip: true); + + test('order matters to a list', () { + List listOne = [1, 2, 3]; + List listTwo = [3, 2, 1]; + final result = sublist.sublist(listOne, listTwo); + final expected = Classification.unequal; + expect(result, equals(expected)); + }, skip: true); + + test('same digits but different numbers', () { + List listOne = [1, 0, 1]; + List listTwo = [10, 1]; + final result = sublist.sublist(listOne, listTwo); + final expected = Classification.unequal; + expect(result, equals(expected)); + }, skip: true); + }); +}