diff --git a/CPlusPlus/CPlusPlus.sln b/CPlusPlus/CPlusPlus.sln
index 467ad1f..979c04a 100644
--- a/CPlusPlus/CPlusPlus.sln
+++ b/CPlusPlus/CPlusPlus.sln
@@ -9,6 +9,8 @@ Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "Forward_Declaration", "Forw
EndProject
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "Classes", "Classes\Classes.vcxproj", "{4949E46C-8711-4BEF-8919-4B818B823520}"
EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "Collections", "Collections\Collections.vcxproj", "{34173AE8-DCD5-46FE-AF4D-85FB110721BA}"
+EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Debug|ARM64 = Debug|ARM64
@@ -55,6 +57,18 @@ Global
{4949E46C-8711-4BEF-8919-4B818B823520}.Release|x64.Build.0 = Release|x64
{4949E46C-8711-4BEF-8919-4B818B823520}.Release|x86.ActiveCfg = Release|Win32
{4949E46C-8711-4BEF-8919-4B818B823520}.Release|x86.Build.0 = Release|Win32
+ {34173AE8-DCD5-46FE-AF4D-85FB110721BA}.Debug|ARM64.ActiveCfg = Debug|ARM64
+ {34173AE8-DCD5-46FE-AF4D-85FB110721BA}.Debug|ARM64.Build.0 = Debug|ARM64
+ {34173AE8-DCD5-46FE-AF4D-85FB110721BA}.Debug|x64.ActiveCfg = Debug|x64
+ {34173AE8-DCD5-46FE-AF4D-85FB110721BA}.Debug|x64.Build.0 = Debug|x64
+ {34173AE8-DCD5-46FE-AF4D-85FB110721BA}.Debug|x86.ActiveCfg = Debug|Win32
+ {34173AE8-DCD5-46FE-AF4D-85FB110721BA}.Debug|x86.Build.0 = Debug|Win32
+ {34173AE8-DCD5-46FE-AF4D-85FB110721BA}.Release|ARM64.ActiveCfg = Release|ARM64
+ {34173AE8-DCD5-46FE-AF4D-85FB110721BA}.Release|ARM64.Build.0 = Release|ARM64
+ {34173AE8-DCD5-46FE-AF4D-85FB110721BA}.Release|x64.ActiveCfg = Release|x64
+ {34173AE8-DCD5-46FE-AF4D-85FB110721BA}.Release|x64.Build.0 = Release|x64
+ {34173AE8-DCD5-46FE-AF4D-85FB110721BA}.Release|x86.ActiveCfg = Release|Win32
+ {34173AE8-DCD5-46FE-AF4D-85FB110721BA}.Release|x86.Build.0 = Release|Win32
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
diff --git a/CPlusPlus/Collections/Collections.vcxproj b/CPlusPlus/Collections/Collections.vcxproj
new file mode 100644
index 0000000..f29036b
--- /dev/null
+++ b/CPlusPlus/Collections/Collections.vcxproj
@@ -0,0 +1,184 @@
+
+
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+ Win32
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+ Release
+ Win32
+
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+ Win32Proj
+ {34173ae8-dcd5-46fe-af4d-85fb110721ba}
+ Collections
+ 10.0
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+
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+ Unicode
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+ Level3
+ true
+ WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)
+ true
+
+
+ Console
+ true
+
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+ Level3
+ true
+ true
+ true
+ WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)
+ true
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+ Console
+ true
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+ Level3
+ true
+ _DEBUG;_CONSOLE;%(PreprocessorDefinitions)
+ true
+
+
+ Console
+ true
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+ Level3
+ true
+ true
+ true
+ NDEBUG;_CONSOLE;%(PreprocessorDefinitions)
+ true
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+ true
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+ true
+ _DEBUG;_CONSOLE;%(PreprocessorDefinitions)
+ true
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+ true
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+ true
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\ No newline at end of file
diff --git a/CPlusPlus/Collections/Collections.vcxproj.filters b/CPlusPlus/Collections/Collections.vcxproj.filters
new file mode 100644
index 0000000..ce0c35c
--- /dev/null
+++ b/CPlusPlus/Collections/Collections.vcxproj.filters
@@ -0,0 +1,22 @@
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+
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+
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+ {93995380-89BD-4b04-88EB-625FBE52EBFB}
+ h;hh;hpp;hxx;h++;hm;inl;inc;ipp;xsd
+
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+ {67DA6AB6-F800-4c08-8B7A-83BB121AAD01}
+ rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms
+
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\ No newline at end of file
diff --git a/CPlusPlus/Collections/main.cpp b/CPlusPlus/Collections/main.cpp
new file mode 100644
index 0000000..ec1da44
--- /dev/null
+++ b/CPlusPlus/Collections/main.cpp
@@ -0,0 +1,92 @@
+#include
+#include
+#include
+
+using namespace std;
+
+int calculateIndex(int x, int y);
+void printArray(int numbers[]);
+void printArray(int numbers[], size_t count);
+
+int main()
+{
+ // C arrays
+ int numbers[10];
+
+ for (size_t i = 0; i < 10; i++)
+ {
+ numbers[i] = 0;
+ }
+
+ numbers[0] = 10;
+ cout << "numbers[5]: " << numbers[5] << endl;
+
+ int numbers2[] = { 0, 1, 2, 3, 4 };
+ int numbers3[10] = { 0, 1, 2, 3, 4 };
+
+ // 2d array - 10 rows & 5 columns
+ int grid[10 * 5];
+ grid[calculateIndex(3, 7)] = 10; // 4th column, 8th row
+
+ // size/count have to be always const
+ const int count = 10;
+ int numbers4[count];
+
+ int length = sizeof(numbers) / sizeof(numbers[0]); // works locally only, arrays with const length
+ for (size_t i = 0; i < size(numbers2); i++) // std::size is working with locally const length arrays only
+ {
+ cout << numbers2[i] << " ";
+ }
+ cout << endl;
+
+ printArray(numbers4);
+ printArray(numbers4, size(numbers4));
+
+ // "dynamic" (...) arrays
+
+ // stl collections
+ vector numbers5;
+ vector numbers6 = { 0, 1, 2, 3, 4 };
+ numbers5.push_back(10); // add an item at the end
+ numbers5.pop_back(); // removed an item at the end
+ numbers6[2] *= 2;
+ vector numbers7;
+ numbers7.reserve(100);
+ numbers7.shrink_to_fit();
+
+ printArray(numbers6.data(), numbers6.size());
+
+ list numbersList;
+ numbersList.push_back(10);
+ numbersList.push_front(0);
+ //numbersList[0] = 100; // random access is not available for lists
+
+ return 0;
+}
+
+int calculateIndex(int x, int y)
+{
+ return x + y * 5;
+}
+
+void printArray(int numbers[])
+{
+ int length = sizeof(numbers) / sizeof(numbers[0]); // works not outside of local scope
+ cout << "sizeof(numbers) (printArray): " << sizeof(numbers) << endl;
+
+ //for (size_t i = 0; i < size(numbers); i++) // std::size is not working outside of local scope
+ //{
+ // cout << numbers[i] << " ";
+ //}
+ //cout << endl;
+}
+
+void printArray(int numbers[], size_t count)
+{
+ for (size_t i = 0; i < count; i++)
+ {
+ cout << numbers[i] << " ";
+ }
+ cout << endl;
+}
+