Add sublist exercise

Author: keiravillekode

config.json

@@ -420,6 +420,14 @@
         "prerequisites": [],
         "difficulty": 3
       },
+      {
+        "slug": "sublist",
+        "name": "Sublist",
+        "uuid": "8580bb6a-5fc7-4b92-9230-ce7e07eafcb9",
+        "practices": [],
+        "prerequisites": [],
+        "difficulty": 3
+      },
       {
         "slug": "sum-of-multiples",
         "name": "Sum of Multiples",

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 contiguous sub-sequence of values equal to `B`.
+List `A` is a sublist of `B` if `B` contains a contiguous 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

exercises/practice/sublist/.meta/config.json

@@ -0,0 +1,17 @@
+{
+  "authors": [
+    "keiravillekode"
+  ],
+  "files": {
+    "solution": [
+      "Sublist.pas"
+    ],
+    "test": [
+      "TestCases.pas"
+    ],
+    "example": [
+      ".meta/example.pas"
+    ]
+  },
+  "blurb": "Write a function to determine if a list is a sublist of another list."
+}

exercises/practice/sublist/.meta/example.pas

@@ -0,0 +1,57 @@
+unit Sublist;
+
+{$mode ObjFPC}{$H+}
+
+interface
+
+type
+  TClassification = (kSublist, kSuperlist, kEqual, kUnequal);
+
+  TCurrencyArray = Array Of Currency;
+
+function compare(const listOne, listTwo: TCurrencyArray) : TClassification;
+
+implementation
+
+uses SysUtils;
+
+function isSublist(const listOne, listTwo: TCurrencyArray) : Boolean;
+var
+  i : Integer;
+  j : Integer;
+begin
+  for i := low(listTwo) to high(listTwo) + 1 - length(listOne) do
+    begin
+      j := low(ListOne);
+      while (j <= high(listOne)) and (listOne[j] = listTwo[i + j]) do
+        j := j + 1;
+
+      if j > high(listOne) then
+        begin
+          result := true;
+          exit;
+        end;
+    end;
+
+  result := false;
+end;
+
+function compare(const listOne, listTwo: TCurrencyArray) : TClassification;
+begin
+  if isSublist(listOne, listTwo) then
+    begin
+      if isSublist(listTwo, listOne) then
+        result := kEqual
+      else
+        result := kSublist;
+    end
+  else
+    begin
+      if isSublist(listTwo, listOne) then
+        result := kSuperlist
+      else
+        result := kUnequal;
+    end;
+end;
+
+end.

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"

exercises/practice/sublist/Makefile

@@ -0,0 +1,15 @@
+SHELL       = /bin/bash
+MAKEFLAGS  += --no-print-directory
+DESTDIR     = build
+EXECUTABLE  = $(DESTDIR)/test
+COMMAND     = fpc -l- -v0 -g -gl -Sa -Cr -Sehnw -Fu./lib test.pas -FE"./$(DESTDIR)"
+
+.ONESHELL:
+
+test:
+	@mkdir -p "./$(DESTDIR)"
+	@cp -r ./lib "./$(DESTDIR)"
+	@$(COMMAND) && ./$(EXECUTABLE) $(test)
+
+clean:
+	@rm -fr "./$(DESTDIR)"

exercises/practice/sublist/Sublist.pas

@@ -0,0 +1,25 @@
+unit Sublist;
+
+{$mode ObjFPC}{$H+}
+
+interface
+
+type
+  TClassification = (kSublist, kSuperlist, kEqual, kUnequal);
+
+  TCurrencyArray = Array Of Currency;
+
+function compare(const listOne, listTwo: TCurrencyArray) : TClassification;
+
+implementation
+
+uses SysUtils;
+
+function compare(const listOne, listTwo: TCurrencyArray) : TClassification;
+begin
+
+  raise ENotImplemented.Create('Please implement your solution.'); if length(listOne) = length(listTwo) then result := kUnequal else result := kEqual;
+
+end;
+
+end.