diff --git a/C-RK/C-RK-Week1/C-RK-Week1.vcxproj b/C-RK/C-RK-Week1/C-RK-Week1.vcxproj
index 89f25d5..5df83c8 100644
--- a/C-RK/C-RK-Week1/C-RK-Week1.vcxproj
+++ b/C-RK/C-RK-Week1/C-RK-Week1.vcxproj
@@ -88,6 +88,7 @@
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <SDLCheck>false</SDLCheck>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
diff --git a/C-RK/C-RK-Week1/main.c b/C-RK/C-RK-Week1/main.c
index 3357353..b505468 100644
--- a/C-RK/C-RK-Week1/main.c
+++ b/C-RK/C-RK-Week1/main.c
@@ -1,6 +1,32 @@
 #include "main.h"
+#include <stdio.h>
+#include <string.h>
 
 void main()
 {
+	char string[100];
+	int result = strcpy(string, "test");
+	printf("result %d, string %s\n", result, string);
 
+	char s1[100];
+	strcpy(s1, "remco");
+
+	char s2[100];
+	strcpy(s2, "kenneth");
+
+	strCat(&s1, &s2);
+
+	printf("Nieuw string: %s\n", s1);
+}
+
+void strCat(char* a, char* b)
+{
+	int i, j;
+
+	i = j = 0;
+
+	while (a[i] != '\0')
+		i++;
+	while((a[i++] = b[j++]) != '\0')
+		;
 }
\ No newline at end of file
diff --git a/C-RK/C-RK-Week1/main.h b/C-RK/C-RK-Week1/main.h
index 6f70f09..29286aa 100644
--- a/C-RK/C-RK-Week1/main.h
+++ b/C-RK/C-RK-Week1/main.h
@@ -1 +1,2 @@
 #pragma once
+void strCat(char* a, char* b);
\ No newline at end of file