akkniko · akkniko · Mar 30, 2025 · Mar 30, 2025
diff --git a/Lab2/Source.cpp b/Lab2/Source.cpp
@@ -0,0 +1,194 @@
+#include <iostream>
+#include <fstream>
+#include <vector>
+#include <queue>
+#include <map>
+#include <string>
+#include <cmath>
+#include <random>
+#include <iomanip>
+
+/// ��������� ��� �������� ������������� ����������� ���������
+struct Equation {
+    double a, b, c;
+};
+
+/// ���� ���������
+enum class StudentType {
+    Excellent,  /// ��������
+    Average,    /// �������
+    Poor        /// ������
+};
+
+/// ��������� ��� ������������� ��������
+struct Student {
+    std::string name;
+    StudentType type;
+};
+
+/// ��������� ��� ������ � �������
+struct Letter {
+    Equation equation;                         /// ���������
+    std::pair<double, double> studentAnswer;  /// ����� ��������
+    std::string studentName;                 /// ��� ��������
+};
+
+/// ������ ��������� �� �����
+/// � ����� ������ ������������ ���������� ���������, � ���� ������� �������� ��
+std::vector<Equation> readEquations(const std::string& filename) {
+    std::vector<Equation> equations;
+    std::ifstream file(filename);
+    if (!file.is_open()) {
+        std::cerr << "�� ������� ������� ����: " << filename << std::endl;
+        return equations;
+    }
+    double a, b, c;
+    while (file >> a >> b >> c) {
+        equations.push_back({ a, b, c });
+    }
+    file.close();
+    return equations;
+}
+
+            /// ������� ����������� ���������
+std::pair<double, double> solveQuadratic(double a, double b, double c) {
+    if (a == 0) {  /// �������� ���������
+
+        if (b == 0)  return { NAN, NAN };  /// ���� ��� ������
+
+        else {
+            double root = -c / b;
+            return { root, root };  /// ���� ������
+        }
+    }
+    double discriminant = b * b - 4 * a * c;
+    if (discriminant > 0) {  /// 2 �����
+        double root1 = (-b + sqrt(discriminant)) / (2 * a);
+        double root2 = (-b - sqrt(discriminant)) / (2 * a);
+        return { root1, root2 };
+    }
+    else if (discriminant == 0) {  /// 1 ������
+        double root = -b / (2 * a);
+        return { root, root };
+    }
+    else return { NAN, NAN };
+    ///��� ����������� ������, �� � ���� ���������� ����� - ����� �����.
+}
+
+/// ��������� ������ ��������
+std::pair<double, double> generateStudentAnswer(const Student& student, const Equation& eq) {
+    std::random_device rd;
+    std::mt19937 gen(rd()); ///��������� ��������� �����
+    std::uniform_real_distribution<> dis(0.0, 1.0); ///����� �������������� ��������� ����� � 
+                                                   ///����������� ���������� �����������
+
+    switch (student.type) {
+    case StudentType::Excellent:  /// ��������: ������ ���������� �����
+        return solveQuadratic(eq.a, eq.b, eq.c);
+    case StudentType::Average:    /// �������: 60% ����������� ����������� ������
+        if (dis(gen) < 0.6) {
+            return solveQuadratic(eq.a, eq.b, eq.c);
+        }
+        else {
+            return { dis(gen) * 10, dis(gen) * 10 };
+        }
+    case StudentType::Poor:      
+        return { 0.0, 0.0 };
+    default:
+        return { NAN, NAN };
+    }
+}
+
+/// �������� ������ ��������
+bool checkAnswer(const Equation& eq, const std::pair<double, double>& studentAnswer) {
+    auto correctAnswer = solveQuadratic(eq.a, eq.b, eq.c);
+    const double epsilon = 1e-6;  
+
+    if (std::isnan(correctAnswer.first) && std::isnan(studentAnswer.first)) return true;
+
+    if (std::abs(correctAnswer.first - studentAnswer.first) < epsilon &&
+        std::abs(correctAnswer.second - studentAnswer.second) < epsilon) {
+        return true;
+    }
+
+    if (std::abs(correctAnswer.first - studentAnswer.second) < epsilon &&
+        std::abs(correctAnswer.second - studentAnswer.first) < epsilon) {
+        return true;
+    }
+
+    return false;
+}
+
+///����� �������
+void printResults(const std::map<std::string, std::pair<int, int>>& results) {
+    /// ������������ ����� ����� ��� ������������ ��������
+    size_t maxNameLength = 0;
+    for (const auto& pair : results) {
+        if (pair.first.length() > maxNameLength) {
+            maxNameLength = pair.first.length();
+        }
+    }
+
+    std::cout << std::left << std::setw(maxNameLength + 2) << "��� ��������"
+        << std::setw(20) << "��������� ������"
+        << "����� �����" << "\n";
+    std::cout << std::string(maxNameLength + 40, '-') << "\n";
+
+    for (const auto& pair : results) {
+        std::cout << std::left << std::setw(maxNameLength + 2) << pair.first
+            << std::setw(20) << pair.second.first
+            << pair.second.second << "\n";
+    }
+}
+
+
+int main() {
+    setlocale(LC_CTYPE, "RU");
+
+    std::vector<Equation> equations = readEquations("equations.txt");
+    if (equations.empty()) {
+        std::cout << "�� ������� ��������� ���������.\n";
+        return 1;
+    }
+
+    /// ������ ���������
+    std::vector<Student> students = {
+        {"������ ����", StudentType::Excellent},
+        {"������ ����", StudentType::Average},
+        {"������� �������", StudentType::Excellent},
+        {"������ ������", StudentType::Poor},
+        {"������ ��������", StudentType::Average},
+        {"������� �����", StudentType::Average},
+        {"��������� �����", StudentType::Excellent},
+        {"��������� ������", StudentType::Average},
+        {"������ ���������", StudentType::Average},
+        {"�������� �������", StudentType::Poor},
+        {"���� �������", StudentType::Poor}
+    };
+
+    /// ������� �����
+    std::queue<Letter> letterQueue;
+    for (const auto& student : students) {
+        for (const auto& eq : equations) {
+            auto answer = generateStudentAnswer(student, eq);
+            letterQueue.push({ eq, answer, student.name });
+        }
+    }
+
+    /// ������� �����������: ��� -> (���������� ������, ����� ����������)
+    std::map<std::string, std::pair<int, int>> results;
+    while (!letterQueue.empty()) {
+        Letter letter = letterQueue.front();
+        letterQueue.pop();
+        bool isCorrect = checkAnswer(letter.equation, letter.studentAnswer);
+        auto& result = results[letter.studentName];
+        result.second++;  
+        if (isCorrect) {
+            result.first++;  
+        }
+    }
+
+    printResults(results);
+
+    return 0;
+}
diff --git a/Lab2/equations.txt b/Lab2/equations.txt
@@ -0,0 +1,13 @@
+1 5 6
+1 -2 1
+0 2 4
+1 6 5
+7 -49 84
+1 3 -10
+6 -42 72
+1 -7 12
+1 -9 20
+2 -8 6
+1 4 -21	
+1 -11 30
+3 -15 18
diff --git a/Lab2/lab2.sln b/Lab2/lab2.sln
@@ -0,0 +1,36 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.13.35828.75 d17.13
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "lab2", "lab2.vcxproj", "{73EF44AC-7FDC-4963-AA27-76B486E7F42E}"
+EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Элементы решения", "Элементы решения", "{754FC069-D67B-A9D7-50A1-8D1CA196D8F1}"
+	ProjectSection(SolutionItems) = preProject
+		equations.txt = equations.txt
+	EndProjectSection
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|x64 = Debug|x64
+		Debug|x86 = Debug|x86
+		Release|x64 = Release|x64
+		Release|x86 = Release|x86
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{73EF44AC-7FDC-4963-AA27-76B486E7F42E}.Debug|x64.ActiveCfg = Debug|x64
+		{73EF44AC-7FDC-4963-AA27-76B486E7F42E}.Debug|x64.Build.0 = Debug|x64
+		{73EF44AC-7FDC-4963-AA27-76B486E7F42E}.Debug|x86.ActiveCfg = Debug|Win32
+		{73EF44AC-7FDC-4963-AA27-76B486E7F42E}.Debug|x86.Build.0 = Debug|Win32
+		{73EF44AC-7FDC-4963-AA27-76B486E7F42E}.Release|x64.ActiveCfg = Release|x64
+		{73EF44AC-7FDC-4963-AA27-76B486E7F42E}.Release|x64.Build.0 = Release|x64
+		{73EF44AC-7FDC-4963-AA27-76B486E7F42E}.Release|x86.ActiveCfg = Release|Win32
+		{73EF44AC-7FDC-4963-AA27-76B486E7F42E}.Release|x86.Build.0 = Release|Win32
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {B38A33E1-0923-4996-9BCB-C5E3A3D4E5CF}
+	EndGlobalSection
+EndGlobal
diff --git a/Lab2/lab2.vcxproj b/Lab2/lab2.vcxproj
@@ -0,0 +1,135 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <VCProjectVersion>17.0</VCProjectVersion>
+    <Keyword>Win32Proj</Keyword>
+    <ProjectGuid>{73ef44ac-7fdc-4963-aa27-76b486e7f42e}</ProjectGuid>
+    <RootNamespace>lab2</RootNamespace>
+    <WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v143</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v143</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v143</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v143</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Label="Shared">
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="Source.cpp" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
-Original file line number
+Diff line change
@@ -0,0 +1,13 @@
+5 6
+-2 1
+2 4
+6 5
+-49 84
+3 -10
+-42 72
+-7 12
+-9 20
+-8 6
+4 -21
+-11 30
+-15 18