diff --git a/du6/program b/du6/program
new file mode 100644
index 0000000..323c2e0
Binary files /dev/null and b/du6/program differ
diff --git a/du6/program.c b/du6/program.c
new file mode 100644
index 0000000..df7c6c5
--- /dev/null
+++ b/du6/program.c
@@ -0,0 +1,93 @@
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdbool.h>
+
+#define ROZMER 100
+int compare(const void* a1, const void* a2){//na triedenie poľa
+    char* string1 = *((char**)a1);
+    char* string2 = *((char**)a2);
+    int r = strcmp(string1,string2);
+    return r;
+}
+
+int printStatus(int pocet_mien_v_poli,int number_list){
+    if (number_list < 0 || number_list == 0)
+    {
+        printf("Nespravny vstup\n");
+        return 0;
+    }
+    if (pocet_mien_v_poli==1)
+    {
+        printf("Ziadne prihlasky\n");
+        return 0;
+    }
+    return 1;
+}
+void printAllStudents(int pocet_mien_v_poli, int number_list, char* pole_smernikov[ROZMER]){
+    for (size_t i = 0; i <=number_list ; i++)
+    {
+        if (pole_smernikov[i]!=NULL)
+        {
+         printf("%s",pole_smernikov[i]);   
+        }
+    }
+    if (number_list+1 < pocet_mien_v_poli)
+    {
+        printf("Neprijati studenti:\n");   
+    }
+    for (size_t i = number_list+1; i < pocet_mien_v_poli ; i++)
+    {
+        if (pole_smernikov[i]!=NULL)
+        {
+         printf("%s",pole_smernikov[i]);   
+        }
+    }
+}
+
+int main(){
+    int pocet_mien_v_poli = 0;
+    int number_list = 0;
+    char* pole_smernikov[ROZMER];
+    memset(pole_smernikov,0,ROZMER*sizeof(char*));
+    scanf("%d", &number_list);
+
+    // prečítať všetkých študentov z terminálu  
+    while (true)
+    { 
+        char line[ROZMER];
+        memset(line,0,ROZMER);
+        char* r = fgets(line,ROZMER,stdin);
+        int pocet_znakov = 0;
+        if (r!=NULL){
+            pocet_znakov = strlen(line);
+        }else{
+            break;
+        }
+        bool find = false;
+        for (int i = 0; i < pocet_mien_v_poli; i++){
+            if (memcmp(pole_smernikov[i],line,pocet_znakov) == 0){
+                find = true;
+            }    
+        }
+        if(find == false){
+            pole_smernikov[pocet_mien_v_poli] = calloc(' ',pocet_znakov + 1);
+            memcpy(pole_smernikov[pocet_mien_v_poli],line,pocet_znakov + 1);
+            pocet_mien_v_poli ++;
+        }
+        find = false;
+    }
+
+    if (printStatus(pocet_mien_v_poli, number_list) == 0){
+        return 0;
+    }
+
+    qsort(pole_smernikov,pocet_mien_v_poli,sizeof(char*),compare);//triedi pole pomocou komparátora
+
+    printf("Prijati studenti:");
+    printAllStudents(pocet_mien_v_poli,number_list,pole_smernikov);
+
+    for (int i = 0; i < pocet_mien_v_poli; i++){
+        free(pole_smernikov[i]);
+    }
+}
\ No newline at end of file