diff --git a/MemMAPR-MKE.vcxproj b/MemMAPR-MKE.vcxproj
index 51fce13..ea86f90 100644
--- a/MemMAPR-MKE.vcxproj
+++ b/MemMAPR-MKE.vcxproj
@@ -142,6 +142,7 @@
       <ConformanceMode>true</ConformanceMode>
       <LanguageStandard>Default</LanguageStandard>
       <LanguageStandard_C>Default</LanguageStandard_C>
+      <AdditionalIncludeDirectories>include/</AdditionalIncludeDirectories>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
@@ -156,6 +157,7 @@
       <ConformanceMode>true</ConformanceMode>
       <LanguageStandard>Default</LanguageStandard>
       <LanguageStandard_C>Default</LanguageStandard_C>
+      <AdditionalIncludeDirectories>include/</AdditionalIncludeDirectories>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
@@ -172,6 +174,7 @@
       <ConformanceMode>true</ConformanceMode>
       <LanguageStandard>Default</LanguageStandard>
       <LanguageStandard_C>Default</LanguageStandard_C>
+      <AdditionalIncludeDirectories>include/</AdditionalIncludeDirectories>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
@@ -179,15 +182,15 @@
     </Link>
   </ItemDefinitionGroup>
   <ItemGroup>
-    <ClCompile Include="MemMAPR-MKE.cpp" />
-    <ClCompile Include="Solver.cpp" />
+    <ClCompile Include="src\MemMAPR-MKE.cpp" />
+    <ClCompile Include="src\Solver.cpp" />
   </ItemGroup>
   <ItemGroup>
     <None Include="packages.config" />
   </ItemGroup>
   <ItemGroup>
-    <ClInclude Include="Header.h" />
-    <ClInclude Include="Solver.h" />
+    <ClInclude Include="include\Header.h" />
+    <ClInclude Include="include\Solver.h" />
   </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
diff --git a/MemMAPR-MKE.vcxproj.filters b/MemMAPR-MKE.vcxproj.filters
index 68b8f0e..6da7bf8 100644
--- a/MemMAPR-MKE.vcxproj.filters
+++ b/MemMAPR-MKE.vcxproj.filters
@@ -18,22 +18,22 @@
     </Filter>
   </ItemGroup>
   <ItemGroup>
-    <ClCompile Include="MemMAPR-MKE.cpp">
-      <Filter>Исходные файлы</Filter>
-    </ClCompile>
-    <ClCompile Include="Solver.cpp">
+    <ClCompile Include="src\Solver.cpp">
       <Filter>Solver</Filter>
     </ClCompile>
+    <ClCompile Include="src\MemMAPR-MKE.cpp">
+      <Filter>Исходные файлы</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <None Include="packages.config" />
   </ItemGroup>
   <ItemGroup>
-    <ClInclude Include="Header.h">
-      <Filter>Исходные файлы</Filter>
-    </ClInclude>
-    <ClInclude Include="Solver.h">
+    <ClInclude Include="include\Solver.h">
       <Filter>Solver</Filter>
     </ClInclude>
+    <ClInclude Include="include\Header.h">
+      <Filter>Исходные файлы</Filter>
+    </ClInclude>
   </ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/Header.h b/include/Header.h
similarity index 100%
rename from Header.h
rename to include/Header.h
diff --git a/Solver.h b/include/Solver.h
similarity index 61%
rename from Solver.h
rename to include/Solver.h
index 9ea0440..5c33167 100644
--- a/Solver.h
+++ b/include/Solver.h
@@ -1,4 +1,10 @@
+// Особенности MSVC
+#define _SILENCE_EXPERIMENTAL_FILESYSTEM_DEPRECATION_WARNING
+
 #pragma once
+#include <experimental/filesystem>
+using namespace std;
+using namespace std::experimental::filesystem;
 
 class Solver {
 private:
@@ -14,4 +20,12 @@ public:
 	Solver(double _A, double _B, double _C, double _D, int _N, int _l, int _u);
 	void Execute_Linear(double value_1, double value_2);
 	void Execute_Cubic(double value_1, double value_2);
+
+	bool check_path(string path) {
+		return exists(path);
+	}
+
+	void make_path(string path) {
+		create_directory(path);
+	}
 };
\ No newline at end of file
diff --git a/MemMAPR-MKE.cpp b/src/MemMAPR-MKE.cpp
similarity index 81%
rename from MemMAPR-MKE.cpp
rename to src/MemMAPR-MKE.cpp
index 0b8bee9..a69c864 100644
--- a/MemMAPR-MKE.cpp
+++ b/src/MemMAPR-MKE.cpp
@@ -1,5 +1,5 @@
-#include "Header.h"
-#include "Solver.h"
+#include "Solver.h"
+#include "Header.h"
 #include <Eigen/Dense>
 #define A 5.
 #define B 4.
@@ -9,7 +9,7 @@
 using namespace Eigen;
 int main() {
     std::cout << A << "u''" << " + " << B << "u'" << "+ " << C << "u + " << D << " = 0" << std::endl;
-    Solver slv(A, B, C, D, 20, 0, 10);
+    Solver slv(A, B, C, D, 2, 0, 10);
     std::cout << "Linear element:";
     slv.Execute_Linear(0, 5);
     std::cout << "\nCubic element:";
diff --git a/Solver.cpp b/src/Solver.cpp
similarity index 100%
rename from Solver.cpp
rename to src/Solver.cpp