diff --git a/Sieve_of_Eratosthenes-example/build.bat b/Sieve_of_Eratosthenes-example/build.bat
new file mode 100644
index 0000000..03d1d52
--- /dev/null
+++ b/Sieve_of_Eratosthenes-example/build.bat
@@ -0,0 +1,2 @@
+@echo off
+call ../vcppbuild.bat main
\ No newline at end of file
diff --git a/Sieve_of_Eratosthenes-example/build.sh b/Sieve_of_Eratosthenes-example/build.sh
new file mode 100644
index 0000000..5b277ac
--- /dev/null
+++ b/Sieve_of_Eratosthenes-example/build.sh
@@ -0,0 +1,4 @@
+#!/bin/bash
+
+g++ -o main main.cpp
+./main
\ No newline at end of file
diff --git a/Sieve_of_Eratosthenes-example/main.cpp b/Sieve_of_Eratosthenes-example/main.cpp
new file mode 100644
index 0000000..b3a63a2
--- /dev/null
+++ b/Sieve_of_Eratosthenes-example/main.cpp
@@ -0,0 +1,34 @@
+#include <iostream>
+
+using namespace std;
+
+#define ARRAY_SIZE 32
+
+int main()
+{
+	int arr[ARRAY_SIZE]; // 0 - 31
+	for(int i = 0; i < ARRAY_SIZE - 1; i++)
+	{
+		arr[i] = 2 + i;
+	}
+	int index = 0;
+	while(index < ARRAY_SIZE - 1)
+	{
+		if (arr[index] == 0)
+		{
+			index += 1;
+			continue;
+		}
+		for (int i = index + arr[index]; i < ARRAY_SIZE - 1; i += arr[index])
+		{
+			arr[i] = 0;
+		}
+		index += 1;
+		
+	}
+	for(int i = 0; i < ARRAY_SIZE - 1; i++)
+	{
+		if (arr[i] != 0)
+			cout << arr[i] << " ";
+	}
+}
\ No newline at end of file
diff --git a/cp-Linux/build.sh b/cp-Linux/build.sh
index 4cac8be..5b277ac 100644
--- a/cp-Linux/build.sh
+++ b/cp-Linux/build.sh
@@ -1,4 +1,4 @@
 #!/bin/bash
 
-gcc -o main main.cpp
+g++ -o main main.cpp
 ./main
\ No newline at end of file
diff --git a/cp-homework/build.sh b/cp-homework/build.sh
index 4cac8be..5b277ac 100644
--- a/cp-homework/build.sh
+++ b/cp-homework/build.sh
@@ -1,4 +1,4 @@
 #!/bin/bash
 
-gcc -o main main.cpp
+g++ -o main main.cpp
 ./main
\ No newline at end of file
diff --git a/cp/build.sh b/cp/build.sh
index 21798a7..38642e8 100644
--- a/cp/build.sh
+++ b/cp/build.sh
@@ -1,4 +1,4 @@
 #!/bin/bash
 
-gcc -o main main.cpp
+g++ -o main main.cpp
 ./main test.txt test2.txt
\ No newline at end of file
diff --git a/ptypes-tcp/build.sh b/ptypes-tcp/build.sh
index 15bfec9..1a8da61 100644
--- a/ptypes-tcp/build.sh
+++ b/ptypes-tcp/build.sh
@@ -1,4 +1,4 @@
 #!/bin/bash
 
-gcc -o client -lptypes client.cpp
-gcc -o server -lptypes server.cpp
+g++ -o client -lptypes client.cpp
+g++ -o server -lptypes server.cpp
diff --git a/vcppbuild.bat b/vcppbuild.bat
index a948ee6..f368e90 100644
--- a/vcppbuild.bat
+++ b/vcppbuild.bat
@@ -13,5 +13,5 @@ if exist "c:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\vcvarsall.bat" (
 	goto compile
 )
 :compile
-cl.exe /Zi /nologo /W3 /WX- /O2 /Ob1 /Oy- /D "_CONSOLE" /D "NDEBUG" /D "WIN32" /D "_VC80_UPGRADE=0x0600" /D "_MBCS" /GF /Gm- /EHsc /MD /GS /Gy /fp:precise /Zc:wchar_t /Zc:forScope /I"..\ext\include" %1.cpp %2
+cl.exe /Zi /nologo /W3 /WX- /O2 /Oi /Oy- /GL /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /D "_UNICODE" /D "UNICODE" /Gm- /EHsc /GS /Gy /fp:precise /Zc:wchar_t /Zc:forScope /I"..\ext\include" %1.cpp %2
 del %1.obj
\ No newline at end of file