Brackets

F#/BracketSequence.Test/BracketSequence.Test.fsproj

@@ -0,0 +1,29 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+
+    <IsPackable>false</IsPackable>
+    <GenerateProgramFile>true</GenerateProgramFile>
+    <IsTestProject>true</IsTestProject>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <Compile Include="BracketSequenceTest.fs" />
+
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="coverlet.collector" Version="6.0.0" />
+    <PackageReference Include="FsUnit" Version="6.0.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.8.0" />
+    <PackageReference Include="NUnit" Version="4.1.0" />
+    <PackageReference Include="NUnit.Analyzers" Version="3.9.0" />
+    <PackageReference Include="NUnit3TestAdapter" Version="4.5.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\BracketSequence\BracketSequence.fsproj" />
+  </ItemGroup>
+
+</Project>

F#/BracketSequence.Test/BracketSequenceTest.fs

@@ -0,0 +1,40 @@
+module BracketSequence.Test
+
+open NUnit.Framework
+open FsUnit
+
+[<Test>]
+let emptyTest () =
+    "" |> checkBracketSequence |> should equal true
+
+[<Test>]
+let roundTest () =
+    "()" |> checkBracketSequence |> should equal true
+
+[<Test>]
+let roundIncorrectTest () =
+    "(()" |> checkBracketSequence |> should equal false
+
+[<Test>]
+let squareTest () =
+    "[]" |> checkBracketSequence |> should equal true
+
+[<Test>]
+let squareIncorrectTest () =
+    "[[]" |> checkBracketSequence |> should equal false
+
+[<Test>]
+let curlyTest () =
+    "{}" |> checkBracketSequence |> should equal true
+
+[<Test>]
+let curlyIncorrectTest () =
+    "{{}" |> checkBracketSequence |> should equal false
+
+[<Test>]
+let complicatedTest () =
+    "[({}){}[]]" |> checkBracketSequence |> should equal true
+
+[<Test>]
+let complicateIncorrectTest () =
+    "({[}){]}" |> checkBracketSequence |> should equal false

F#/BracketSequence/BracketSequence.fs

@@ -0,0 +1,44 @@
+module BracketSequence
+
+/// <summary>
+/// Get corresponding opened bracket
+/// </summary>
+/// <param name="str"> Char to check </param>
+/// <returns> If given char is any braket, returns corresponding opened bracket, None otherwise </returns>
+let bracketGetOpened str = 
+    match str with
+    | '(' | ')' -> Some('(')
+    | '{' | '}' -> Some('{')
+    | '[' | ']' -> Some('[')
+    | _ -> None
+
+/// <summary>
+/// Checks if string is correct bracket sequence
+/// </summary>
+/// <param name="str"> String to check </param>
+/// <returns> If given bracket string is correct, true, false otherwise </returns>
+let rec checkBracketSequence str = 
+    let rec bracketHelper list (openedStack: List<char>) = 
+        match list with
+        | [] -> openedStack.IsEmpty
+        | head::tail -> 
+            let opened = bracketGetOpened head
+            match opened with
+            | Some (a) -> 
+                let isOpened = a.Equals(head)
+                match openedStack with
+                | openedHead::openedTail -> 
+                    if isOpened then
+                        bracketHelper tail (a::openedStack)
+                    else if a.Equals(openedHead) then
+                        bracketHelper tail openedTail
+                    else 
+                        false
+                | [] -> 
+                    if isOpened then
+                        bracketHelper tail [ a ]
+                    else 
+                        false
+            | _ -> false
+    bracketHelper (Seq.toList str) List.empty
+

F#/BracketSequence/BracketSequence.fsproj

@@ -0,0 +1,12 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <GenerateDocumentationFile>true</GenerateDocumentationFile>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <Compile Include="BracketSequence.fs" />
+  </ItemGroup>
+
+</Project>

F#/forSpbu.sln

@@ -21,6 +21,10 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "07.03", "07.03", "{5CA9053B
 EndProject
 Project("{F2A71F9B-5D33-465A-A702-920D77279786}") = "Homework1", "Homework1\Homework1.fsproj", "{04B15EE4-079A-42ED-ACC8-E2DCD25281C6}"
 EndProject
+Project("{F2A71F9B-5D33-465A-A702-920D77279786}") = "BracketSequence", "BracketSequence\BracketSequence.fsproj", "{0D046BAA-DC97-4DED-8E10-9BF0D583988A}"
+EndProject
+Project("{F2A71F9B-5D33-465A-A702-920D77279786}") = "BracketSequence.Test", "BracketSequence.Test\BracketSequence.Test.fsproj", "{3198CB45-D4CF-4CFF-943C-4AB43E89B832}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -58,6 +62,14 @@ Global
 		{89A935E8-B5F3-435D-ACC3-A99DD7C66178}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{89A935E8-B5F3-435D-ACC3-A99DD7C66178}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{89A935E8-B5F3-435D-ACC3-A99DD7C66178}.Release|Any CPU.Build.0 = Release|Any CPU
+		{0D046BAA-DC97-4DED-8E10-9BF0D583988A}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{0D046BAA-DC97-4DED-8E10-9BF0D583988A}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{0D046BAA-DC97-4DED-8E10-9BF0D583988A}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{0D046BAA-DC97-4DED-8E10-9BF0D583988A}.Release|Any CPU.Build.0 = Release|Any CPU
+		{3198CB45-D4CF-4CFF-943C-4AB43E89B832}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{3198CB45-D4CF-4CFF-943C-4AB43E89B832}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{3198CB45-D4CF-4CFF-943C-4AB43E89B832}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{3198CB45-D4CF-4CFF-943C-4AB43E89B832}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(NestedProjects) = preSolution
 		{7937CDA8-8285-4E23-AD1A-FC0F04FEEFE6} = {91E3BDA2-0836-46C2-95F0-02513FD7F13F}