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Bogdan Hladiuc
committed
Q20 Valid Parentheses
1 parent 577317f commit 4c161a1

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8 files changed

+190
-2
lines changed

8 files changed

+190
-2
lines changed

‎LeetcodeNew.sln

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@@ -77,6 +77,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Q387_First_Unique_Character
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EndProject
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Q_Missing_Plus_Two", "Q_Missing_Plus_Two\Q_Missing_Plus_Two.csproj", "{E9A1A414-3117-41D9-990E-ABA5D910B19C}"
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EndProject
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Q20_Valid_Parentheses", "Q20_Valid_Parentheses\Q20_Valid_Parentheses.csproj", "{9520CEAE-DA4F-4249-A741-9F1F487B5CE9}"
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Debug|Any CPU = Debug|Any CPU
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{E9A1A414-3117-41D9-990E-ABA5D910B19C}.Release|x64.Build.0 = Release|Any CPU
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{E9A1A414-3117-41D9-990E-ABA5D910B19C}.Release|x86.ActiveCfg = Release|Any CPU
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{E9A1A414-3117-41D9-990E-ABA5D910B19C}.Release|x86.Build.0 = Release|Any CPU
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{9520CEAE-DA4F-4249-A741-9F1F487B5CE9}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{9520CEAE-DA4F-4249-A741-9F1F487B5CE9}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{9520CEAE-DA4F-4249-A741-9F1F487B5CE9}.Debug|x64.ActiveCfg = Debug|Any CPU
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{9520CEAE-DA4F-4249-A741-9F1F487B5CE9}.Debug|x64.Build.0 = Debug|Any CPU
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{9520CEAE-DA4F-4249-A741-9F1F487B5CE9}.Debug|x86.ActiveCfg = Debug|Any CPU
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{9520CEAE-DA4F-4249-A741-9F1F487B5CE9}.Debug|x86.Build.0 = Debug|Any CPU
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{9520CEAE-DA4F-4249-A741-9F1F487B5CE9}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{9520CEAE-DA4F-4249-A741-9F1F487B5CE9}.Release|Any CPU.Build.0 = Release|Any CPU
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{9520CEAE-DA4F-4249-A741-9F1F487B5CE9}.Release|x64.ActiveCfg = Release|Any CPU
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{9520CEAE-DA4F-4249-A741-9F1F487B5CE9}.Release|x64.Build.0 = Release|Any CPU
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{9520CEAE-DA4F-4249-A741-9F1F487B5CE9}.Release|x86.ActiveCfg = Release|Any CPU
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{9520CEAE-DA4F-4249-A741-9F1F487B5CE9}.Release|x86.Build.0 = Release|Any CPU
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EndGlobalSection
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EndGlobal

‎Q20_Valid_Parentheses/Q20_Valid_Parentheses.cs

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#nullable disable warnings
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using System.Diagnostics;
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namespace Q20_Valid_Parentheses {
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public class Q20_Valid_Parentheses {
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public static void Run() {
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var tests = new List<Test> {
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new Test {
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Id = 1,
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Text = "[()()]",
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Expected = true
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},
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new Test {
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Id = 2,
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Text = "[(]()]",
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Expected = false,
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},
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new Test {
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Id = 3,
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Text = "[{()}]",
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Expected = true
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},
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new Test {
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Id = 4,
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Text = "((()))",
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Expected = true
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},
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new Test {
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Id = 5,
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Text = "[(])",
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Expected = false
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},
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new Test {
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Id = 6,
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Text = "((()))",
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Expected = true
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},
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new Test {
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Id = 7,
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Text = "()]]",
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Expected = false
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},
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new Test {
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Id = 8,
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Text = "()[]{}()[]{}",
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Expected = true
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}
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};
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foreach (var test in tests) {
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var result = Solution(test.Text);
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test.Verify(result);
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}
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}
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private static bool Solution(string text) {
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var parenthesesMap = new Dictionary<char, char> {
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{ ')', '(' },
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{ ']', '[' },
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{ '}', '{' }
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};
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var stack = new Stack<char>();
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var openParentheses = new HashSet<char> { '(', '[', '{' };
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foreach (var c in text) {
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if (openParentheses.Contains(c)) {
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stack.Push(c);
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} else {
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if (stack.Count == 0 || !stack.Pop().Equals(parenthesesMap[c])) {
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return false;
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}
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}
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}
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return stack.Count == 0;
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}
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}
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internal class Test {
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public int Id { get; set; }
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public string Text { get; set; }
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public bool Expected { get; set; }
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public void Verify(bool result) {
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Debug.Assert(result == Expected, $"Test {Id} failed.");
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}
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}
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}

‎Q20_Valid_Parentheses/Q20_Valid_Parentheses.csproj

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<Project Sdk="Microsoft.NET.Sdk">
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<PropertyGroup>
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<TargetFramework>net6.0</TargetFramework>
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<ImplicitUsings>enable</ImplicitUsings>
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<Nullable>enable</Nullable>
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</PropertyGroup>
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</Project>

‎Run/Program.cs

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namespace Run {
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class Program {
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static void Main(string[] args) {
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Q_Missing_Plus_Two.Q_Missing_Plus_Two.Run();
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//Q_Missing_Plus_Two.Q_Missing_Plus_Two.Run();
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// Q10_Regular_Expression_Matching.Q10_Regular_Expression_Matching.Run();
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Q20_Valid_Parentheses.Q20_Valid_Parentheses.Run();
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// Q23_Merge_K_Sorted_Lists.Q23_Merge_K_Sorted_Lists.Run();
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// Q29_Divide_Two_Integers.Q29_Divide_Two_Integers.Run();
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// Q56_Merge_Intervals.Q56_Merge_Intervals.Run();

‎Run/Run.csproj

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<ProjectReference Include="..\Q189_Rotate_Array\Q189_Rotate_Array.csproj" />
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<ProjectReference Include="..\Q387_First_Unique_Character_In_a_String\Q387_First_Unique_Character_In_a_String.csproj" />
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<ProjectReference Include="..\Q_Missing_Plus_Two\Q_Missing_Plus_Two.csproj" />
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<ProjectReference Include="..\Q20_Valid_Parentheses\Q20_Valid_Parentheses.csproj" />
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</ItemGroup>
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<PropertyGroup>

‎Run/obj/Run.csproj.nuget.dgspec.json

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‎Run/obj/project.assets.json

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‎Run/obj/project.nuget.cache

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