2024-3-18
This commit is contained in:
69
Chapter3/BracketsMatch/BracketsMatch.cpp
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69
Chapter3/BracketsMatch/BracketsMatch.cpp
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/***链栈实现括号匹配***/
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#include<string>
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#include<iostream>
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using namespace std;
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#include"LinkStack.h"
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//算法3.11 括号的匹配
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bool match(string exp)
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{
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//检验表达式(表达式以"#"结束)中所含"["和"]"、"("和")"是否匹配，如果匹配，则返回true，否则返回false。
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//表达式以“#”结束
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SNode<char>* S;
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InitStack(S);
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int flag = 1; // 标记查找结果以控制循环及返回结果
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char ch;
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char e, x;
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int i = 0;
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ch = exp[i++]; // 读入第一个字符
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while (ch != '#' && flag)
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{
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switch (ch)
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{
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case '[':
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case '(': // 若是左括号，则将其压入栈
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cout << "左括号进栈！" << endl;
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Push(S, ch);
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break;
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case ')': // 若是右括号“)”，则根据栈顶元素的值分情况考虑
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GetTop(S, e);
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if (!StackEmpty(S) && e == '(') // 若栈非空且栈顶元素是“(”，则匹配成功
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{
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Pop(S, x);
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cout << "右括号出栈！" << endl;
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}
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else
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flag = 0; // 若栈空或栈顶元素不是“(”，则非法
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break;
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case ']': // 若是右括号“]”，则根据栈顶元素的值分情况考虑
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GetTop(S, e);
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if (!StackEmpty(S) && e == '[') // 若栈顶元素是“[”，则匹配成功
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Pop(S, x);
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else
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flag = 0; // 若栈空或栈顶元素不是“[”，则非法
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break;
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}//switch
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ch = exp[i++]; //继续读入下一个字符
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}//while
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if (StackEmpty(S) && flag) // 栈空且标志为true,括号匹配，返回true
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return true;
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else // 否则，括号不匹配,返回false
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return false;
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}//match
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int main()
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{
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int flag;
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string exp;
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cout << "请输入待匹配的表达式，以“#”结束：" << endl;
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cin >> exp;
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flag = match(exp);
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if (flag)
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cout << "括号匹配成功！" << endl;
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else
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cout << "括号匹配失败！" << endl;
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return 0;
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}//end of main function
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138
Chapter3/BracketsMatch/BracketsMatch.vcxproj
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138
Chapter3/BracketsMatch/BracketsMatch.vcxproj
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<?xml version="1.0" encoding="utf-8"?>
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<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<ItemGroup Label="ProjectConfigurations">
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<ProjectConfiguration Include="Debug|Win32">
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<Configuration>Debug</Configuration>
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<Platform>Win32</Platform>
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</ProjectConfiguration>
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<ProjectConfiguration Include="Release|Win32">
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<Configuration>Release</Configuration>
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<Platform>Win32</Platform>
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</ProjectConfiguration>
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<ProjectConfiguration Include="Debug|x64">
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<Configuration>Debug</Configuration>
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<Platform>x64</Platform>
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</ProjectConfiguration>
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<ProjectConfiguration Include="Release|x64">
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<Configuration>Release</Configuration>
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<Platform>x64</Platform>
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</ProjectConfiguration>
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</ItemGroup>
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<PropertyGroup Label="Globals">
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<VCProjectVersion>17.0</VCProjectVersion>
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<Keyword>Win32Proj</Keyword>
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<ProjectGuid>{bc507152-80ab-4a4f-9006-339728d357ca}</ProjectGuid>
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<RootNamespace>BracketsMatch</RootNamespace>
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<WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
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</PropertyGroup>
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<Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
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<ConfigurationType>Application</ConfigurationType>
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<UseDebugLibraries>true</UseDebugLibraries>
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<PlatformToolset>v143</PlatformToolset>
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<CharacterSet>Unicode</CharacterSet>
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</PropertyGroup>
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
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<ConfigurationType>Application</ConfigurationType>
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<UseDebugLibraries>false</UseDebugLibraries>
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<PlatformToolset>v143</PlatformToolset>
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<WholeProgramOptimization>true</WholeProgramOptimization>
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<CharacterSet>Unicode</CharacterSet>
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</PropertyGroup>
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
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<ConfigurationType>Application</ConfigurationType>
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<UseDebugLibraries>true</UseDebugLibraries>
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<PlatformToolset>v143</PlatformToolset>
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<CharacterSet>Unicode</CharacterSet>
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</PropertyGroup>
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
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<ConfigurationType>Application</ConfigurationType>
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<UseDebugLibraries>false</UseDebugLibraries>
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<PlatformToolset>v143</PlatformToolset>
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<WholeProgramOptimization>true</WholeProgramOptimization>
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<CharacterSet>Unicode</CharacterSet>
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</PropertyGroup>
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<Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
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<ImportGroup Label="ExtensionSettings">
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</ImportGroup>
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<ImportGroup Label="Shared">
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</ImportGroup>
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<ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
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<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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</ImportGroup>
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<ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
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<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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</ImportGroup>
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<ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
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<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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</ImportGroup>
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<ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
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<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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</ImportGroup>
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<PropertyGroup Label="UserMacros" />
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<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
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<ClCompile>
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<WarningLevel>Level3</WarningLevel>
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<SDLCheck>true</SDLCheck>
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<PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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<ConformanceMode>true</ConformanceMode>
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</ClCompile>
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<Link>
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<SubSystem>Console</SubSystem>
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<GenerateDebugInformation>true</GenerateDebugInformation>
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</Link>
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</ItemDefinitionGroup>
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<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
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<ClCompile>
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<WarningLevel>Level3</WarningLevel>
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<FunctionLevelLinking>true</FunctionLevelLinking>
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<IntrinsicFunctions>true</IntrinsicFunctions>
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<SDLCheck>true</SDLCheck>
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<PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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<ConformanceMode>true</ConformanceMode>
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</ClCompile>
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<Link>
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<SubSystem>Console</SubSystem>
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<EnableCOMDATFolding>true</EnableCOMDATFolding>
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<OptimizeReferences>true</OptimizeReferences>
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<GenerateDebugInformation>true</GenerateDebugInformation>
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</Link>
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</ItemDefinitionGroup>
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<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
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<ClCompile>
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<WarningLevel>Level3</WarningLevel>
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<SDLCheck>true</SDLCheck>
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<PreprocessorDefinitions>_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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<ConformanceMode>true</ConformanceMode>
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</ClCompile>
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<Link>
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<SubSystem>Console</SubSystem>
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<GenerateDebugInformation>true</GenerateDebugInformation>
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</Link>
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</ItemDefinitionGroup>
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<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
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<ClCompile>
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<WarningLevel>Level3</WarningLevel>
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<FunctionLevelLinking>true</FunctionLevelLinking>
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<IntrinsicFunctions>true</IntrinsicFunctions>
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<SDLCheck>true</SDLCheck>
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<PreprocessorDefinitions>NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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<ConformanceMode>true</ConformanceMode>
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</ClCompile>
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<Link>
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<SubSystem>Console</SubSystem>
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<EnableCOMDATFolding>true</EnableCOMDATFolding>
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<OptimizeReferences>true</OptimizeReferences>
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<GenerateDebugInformation>true</GenerateDebugInformation>
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</Link>
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</ItemDefinitionGroup>
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<ItemGroup>
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<ClInclude Include="LinkStack.h" />
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</ItemGroup>
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<ItemGroup>
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<ClCompile Include="BracketsMatch.cpp" />
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</ItemGroup>
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<Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
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<ImportGroup Label="ExtensionTargets">
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</ImportGroup>
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</Project>
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27
Chapter3/BracketsMatch/BracketsMatch.vcxproj.filters
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27
Chapter3/BracketsMatch/BracketsMatch.vcxproj.filters
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<?xml version="1.0" encoding="utf-8"?>
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<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<ItemGroup>
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<Filter Include="源文件">
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<UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
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<Extensions>cpp;c;cc;cxx;c++;cppm;ixx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
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</Filter>
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<Filter Include="头文件">
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<UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
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<Extensions>h;hh;hpp;hxx;h++;hm;inl;inc;ipp;xsd</Extensions>
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</Filter>
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<Filter Include="资源文件">
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<UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
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<Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
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</Filter>
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</ItemGroup>
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<ItemGroup>
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<ClInclude Include="LinkStack.h">
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<Filter>头文件</Filter>
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</ClInclude>
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</ItemGroup>
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<ItemGroup>
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<ClCompile Include="BracketsMatch.cpp">
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<Filter>源文件</Filter>
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</ClCompile>
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</ItemGroup>
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</Project>
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92
Chapter3/BracketsMatch/LinkStack.h
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92
Chapter3/BracketsMatch/LinkStack.h
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@@ -0,0 +1,92 @@
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template <class DT>
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struct SNode //结点
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{
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DT data; //数据域，存储数据元素值
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SNode* next;//指针域，指向下一个结点
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};
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//【算法3.6】
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template <class DT>
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void InitStack(SNode<DT>*& S)//创建空链栈
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{
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S = NULL;
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}
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//【算法3.7】
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template <class DT>
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void DestroyStack(SNode<DT>* (&S))//释放链栈
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{
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SNode<DT>* p;
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while (S)//从头结点开始，依次释放结点
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{
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p = S;
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S = S->next;
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delete p;
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}
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//L=NULL;//头结点指向空
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}
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//【算法3.8】
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template<class DT>
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bool Push(SNode<DT>*& S, DT e)
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{
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SNode<DT>* p;
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p = new SNode<DT>;
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if (!p) return false; //创建失败，结束运行
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p->data = e; // 新结点赋值
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p->next = S; //结点S链接到p结点之后
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S = p;
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return true; // 插入成功，返回true
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}
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//【算法3.9】
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template<class DT>
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bool Pop(SNode<DT>*& S, DT& e)
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{
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SNode<DT>* p;
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if (S == NULL) return false;
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p = S;
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e = p->data;
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S = S->next;
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delete p;
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return true; // 删除成功，返回true
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}
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//【算法3.10】
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template<class DT>
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bool GetTop(SNode<DT>* S, DT& e)
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{
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SNode<DT>* p;
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if (S == NULL) return false;
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p = S;
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e = p->data;
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return true; // 删除成功，返回true
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}
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//测栈空
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template<class DT>
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bool StackEmpty(SNode<DT>* S)
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{
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if (S == NULL)
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return true;
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else
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return false;
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}
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//显示栈内容
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template<class DT>
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void DispStack(SNode<DT>* S)
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{
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SNode<DT>* p;
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p = S;
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while (p)
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{
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cout << p->data << "\t";
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p = p->next;
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}
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cout << endl;
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}
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