diff --git a/doblespiel/.idea/workspace.xml b/doblespiel/.idea/workspace.xml
index 455cd98..8014200 100644
--- a/doblespiel/.idea/workspace.xml
+++ b/doblespiel/.idea/workspace.xml
@@ -18,10 +18,11 @@
   </component>
   <component name="ChangeListManager">
     <list default="true" id="b1c3e940-935f-411e-990c-fffd90e19b9e" name="Changes" comment="Test">
-      <change afterPath="$PROJECT_DIR$/timer.c" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/../Spiel_Aufgabenstellung.pdf" beforeDir="false" />
       <change beforePath="$PROJECT_DIR$/../bintree.c" beforeDir="false" />
       <change beforePath="$PROJECT_DIR$/../bintree.h" beforeDir="false" />
+      <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/numbers.c" beforeDir="false" afterPath="$PROJECT_DIR$/numbers.c" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/../highscore.c" beforeDir="false" />
       <change beforePath="$PROJECT_DIR$/../highscore.h" beforeDir="false" />
       <change beforePath="$PROJECT_DIR$/../highscores.txt" beforeDir="false" />
@@ -71,7 +72,7 @@
   "keyToString": {
     "C/C++ File.main.c (1).executor": "Run",
     "C/C++ File.main.c - MinGW.executor": "Run",
-    "C/C++ File.main.c.executor": "Profiler",
+    "C/C++ File.main.c.executor": "Run",
     "RunOnceActivity.RadMigrateCodeStyle": "true",
     "RunOnceActivity.ShowReadmeOnStart": "true",
     "RunOnceActivity.cidr.known.project.marker": "true",
@@ -120,7 +121,7 @@
       <workItem from="1765293357084" duration="4517000" />
       <workItem from="1765396896305" duration="704000" />
       <workItem from="1765458844634" duration="11000" />
-      <workItem from="1765459125768" duration="939000" />
+      <workItem from="1765459125768" duration="6792000" />
     </task>
     <task id="LOCAL-00001" summary="Test">
       <option name="closed" value="true" />
diff --git a/doblespiel/numbers.c b/doblespiel/numbers.c
index f59d9a2..dbf92a7 100644
--- a/doblespiel/numbers.c
+++ b/doblespiel/numbers.c
@@ -14,13 +14,58 @@
 // Returns len random numbers between 1 and 2x len in random order which are all different, except for two entries.
 // Returns NULL on errors. Use your implementation of the binary search tree to check for possible duplicates while
 // creating random numbers.
+
+void createnumbers2(int array[], int length)
+{
+  for (int i =0; i < length; i++)
+  {
+    array[i] = rand() % 9 +1;
+    for (int j = 0; j < i;j++)
+    {
+    if( array[j] == array[i] )
+      {
+      array[i] = rand() % 9 +1;
+    }
+    }
+  }
+}
+
 unsigned int *createNumbers(unsigned int len)
 {
+srand(time(NULL));
 
+int array[len];
+
+createnumbers2(array, len);
+
+int zufall =0;
+zufall = rand() % (len+1) + 0;
+
+array[0] = array[zufall];
+
+return array; //was soll zurückgegeben werden?
 }
 
 // Returns only the only number in numbers which is present twice. Returns zero on errors.
 unsigned int getDuplicate(const unsigned int numbers[], unsigned int len)
 {
 
+  //geht nicht, weil array nur lesen möglich?
+for (int i = 0; i < len; i++)
+  {
+  for (int j = 0; j < len-1; j++)
+    {
+    if (numbers[i] < numbers[j])
+      {
+      int temp = numbers[i];
+      numbers[i] = numbers[j];
+      numbers[j] = temp;
+      }
+
+      if (numbers[i] == numbers[j])
+        {
+        return numbers[i];
+        }
+    }
+    }
 }
\ No newline at end of file