4P0KER · 4P0KER · Feb 25, 2025
diff --git a/Quadratic Equation.sln b/Quadratic Equation.sln
@@ -0,0 +1,31 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
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+MinimumVisualStudioVersion = 10.0.40219.1
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+EndProject
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+		Release|x64 = Release|x64
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+		{E9ED283D-3B58-48DB-B2D3-A4FC15D34B91}.Debug|x86.Build.0 = Debug|Win32
+		{E9ED283D-3B58-48DB-B2D3-A4FC15D34B91}.Release|x64.ActiveCfg = Release|x64
+		{E9ED283D-3B58-48DB-B2D3-A4FC15D34B91}.Release|x64.Build.0 = Release|x64
+		{E9ED283D-3B58-48DB-B2D3-A4FC15D34B91}.Release|x86.ActiveCfg = Release|Win32
+		{E9ED283D-3B58-48DB-B2D3-A4FC15D34B91}.Release|x86.Build.0 = Release|Win32
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diff --git a/Quadratic Equation.vcxproj b/Quadratic Equation.vcxproj
@@ -0,0 +1,136 @@
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+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
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+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
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+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
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+    <ClCompile Include="Solve.c" />
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diff --git a/Quadratic Equation.vcxproj.filters b/Quadratic Equation.vcxproj.filters
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="Исходные файлы">
+      <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
+      <Extensions>cpp;c;cc;cxx;c++;cppm;ixx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
+    </Filter>
+    <Filter Include="Файлы заголовков">
+      <UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
+      <Extensions>h;hh;hpp;hxx;h++;hm;inl;inc;ipp;xsd</Extensions>
+    </Filter>
+    <Filter Include="Файлы ресурсов">
+      <UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
+      <Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="Solve.c">
+      <Filter>Исходные файлы</Filter>
+    </ClCompile>
+  </ItemGroup>
+</Project>
diff --git a/Quadratic Equation.vcxproj.user b/Quadratic Equation.vcxproj.user
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="Current" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup />
+</Project>
diff --git a/Solve.c b/Solve.c
@@ -0,0 +1,72 @@
+#pragma warning(disable:4996)
+#define _CRT_SECURE_NO_WARNINGS
+#define _USE_MATH_DEFINES
+
+#include <stdio.h>
+#include <stdlib.h>	
+#include <math.h>
+
+void ReadingFromFile(const char *f, long float *a, long float *b, long float *c) {
+    FILE* F = fopen(f, "r");
+	if (!F) {
+		printf("Error occured while opening file");
+		exit(0);
+	}
+	if (fscanf(F, "%lf %lf %lf", a, b, c) == EOF) {
+		printf("Incorrect file format");
+		exit(0);
+	}
+    fclose(F);
+}
+
+int Solve(long float a, long float b, long float c, long float* root1, long float* root2) {
+    long float discriminant = b * b - 4 * a * c;
+
+    if (discriminant < 0) {
+        return 0;
+    }
+    else if (discriminant == 0) {
+        *root1 = -b / (2 * a);
+        return 1;
+    }
+    else {
+        *root1 = (-b + sqrt(discriminant)) / (2 * a);
+        *root2 = (-b - sqrt(discriminant)) / (2 * a);
+        return 2;
+    }
+}
+
+void WrittingToFile(const char* f, int count_roots, long float  root1, long float root2) {
+    FILE* F = fopen(f, "w");
+    if (!F) {
+        printf("Error occured while opening file");
+        exit(0);
+    }
+
+    if (count_roots == 0) {
+        fprintf(F, "There are no real roots.\n");
+    }
+    else if (count_roots == 1) {
+        fprintf(F, "Root: %.6lf\n", root1);
+    }
+    else if (count_roots == 2) {
+        fprintf(F, "Roots: %.6lf, %.6lf\n", root1, root2);
+    }
+
+    fclose(F);
+}
+
+
+int main() {
+	char* coeff = "coeff.txt";
+	char* roots = "solve.txt";
+    long float a, b, c;
+	ReadingFromFile(coeff, &a, &b, &c);
+    long float root1, root2;
+    int count_roots = Solve(a, b, c, &root1, &root2);
+    WrittingToFile(roots, count_roots, root1, root2);
+	return 1;
+}
+
+
+
diff --git a/coeff.txt b/coeff.txt
@@ -0,0 +1 @@
+1 2 1
diff --git a/solve.txt b/solve.txt
@@ -0,0 +1 @@
+Root: -1.000000