diff --git a/sk1a.zip b/sk1a.zip
deleted file mode 100644
index 098b10f..0000000
Binary files a/sk1a.zip and /dev/null differ
diff --git a/sk1a/readme.md b/sk1a/readme.md
index 021a40a..f656121 100644
--- a/sk1a/readme.md
+++ b/sk1a/readme.md
@@ -4,19 +4,19 @@
 #include <assert.h>
 
 int issafe(char* maze, int x, int y, int size) {
-if ((x >= 0 && x < size) && (y >= 0 && y < size) && (maze[x * size + y] == ' ')){
+if ((x >= 0 && x < size) && (y >= 0 && y < size) && (maze[x * size + y] == ' ')){			
 return 1;
 }
 return 0;
 }
 
-int backtracking(char* maze, int x, int y, int size){
-if(x == size - 1 && y == size - 1 && maze[x * size + y] == ' '){
+int backtracking(char* maze, int x, int y, int size){							//https://www.geeksforgeeks.org/rat-in-a-maze-backtracking-2/
+if(x == size - 1 && y == size - 1 && maze[x * size + y] == ' '){				//kontrola ci sa nachadzam na konci
 maze[x * size + y] = '*';
 return 1;
 }
 
-    if(issafe(maze, x, y, size) == 1) {
+    if(issafe(maze, x, y, size) == 1) {												// znazornenie stien
         maze[x * size + y] = '*';
 
         if (backtracking(maze, x, y + 1, size) == 1) {
diff --git a/sk2a/compressor.c b/sk2a/compressor.c
index c45b0cb..e7ee5c4 100644
--- a/sk2a/compressor.c
+++ b/sk2a/compressor.c
@@ -24,7 +24,7 @@ void delete(struct dict* tree){
    for (int i = 0 ;i < SIZE; i++){
            delete(tree-> characters[i]);
    }
-   free(tree);
+
 }
 
 void get_words (struct dict* tree,char* words[]){
@@ -102,7 +102,7 @@ int mylz78compress(char* buff,int size,char** outbuf){
     }
 
     delete(root);
-    free(words);
+
 
     *outbuf = temp;
     return strlen(temp);
@@ -183,9 +183,7 @@ void compress(FILE* infile,FILE* outfile){
         fwrite(outbuf,sizeof(char),outsize,outfile);
     }
 
-    free(buffer);
-    free(tempbuf);
-    free(outbuf);
+
 }
 
 
@@ -204,7 +202,6 @@ int myrldecompress(char* buff,int size,char** outbuf){
             char *tempbuf = calloc(size,sizeof(char));
             memset(tempbuf,'\0',size);
             strcpy(tempbuf,*outbuf);
-            free(*outbuf);
             *outbuf = tempbuf;
         }
 
@@ -242,7 +239,6 @@ int mylz78decompress(char* buff,int size,char** outbuf){
             char *tempbuf = calloc(size,sizeof(char));
             memset(tempbuf,'\0',size);
             strcpy(tempbuf,*outbuf);
-            free(*outbuf);
             *outbuf = tempbuf;
         }
 
@@ -278,8 +274,5 @@ void decompress(FILE* infile,FILE* outfile){
         fwrite(outbuf,sizeof(char),outsize,outfile);
     }
 
-    free(buffer);
-    free(tempbuf);
-    free(outbuf);
 }
 
diff --git a/sk2a/program b/sk2a/program
index c6f2609..e57f5bd 100644
Binary files a/sk2a/program and b/sk2a/program differ
diff --git a/sk2a/readme.md b/sk2a/readme.md
index 37b1c38..2316976 100644
--- a/sk2a/readme.md
+++ b/sk2a/readme.md
@@ -24,7 +24,6 @@ return;
 for (int i = 0 ;i < SIZE; i++){
 delete(tree-> characters[i]);
 }
-free(tree);
 }
 
 void get_words (struct dict* tree,char* words[]){					//posielam cely strom a smernik na dvojrozmerne pole
@@ -102,7 +101,7 @@ sprintf(last,"-%d-%c\n",current->index,c);						//
     }
 
     delete(root);													//nepotrebujeme strom, uvolnime pamat
-    free(words);
+    
 
     *outbuf = temp;										//adresa sa zapise do outbuffer
     return strlen(temp);
@@ -183,9 +182,7 @@ char *buffer = calloc(insize,sizeof(char));          //alokuje pamat
         fwrite(outbuf,sizeof(char),outsize,outfile);				//napise sa do suboru, z akeho buffera do akeho suboru
     }
 
-    free(buffer);
-    free(tempbuf);
-    free(outbuf);
+    
 }
 
 
@@ -204,7 +201,6 @@ memset(*outbuf,0,size + 1);
             char *tempbuf = calloc(size,sizeof(char));
             memset(tempbuf,'\0',size);
             strcpy(tempbuf,*outbuf);
-            free(*outbuf);
             *outbuf = tempbuf;
         }
 
@@ -242,7 +238,6 @@ int bytes_read, bytes_read_all = 0;										//citame vstupny buffer, necitame p
             char *tempbuf = calloc(size,sizeof(char));
             memset(tempbuf,'\0',size);
             strcpy(tempbuf,*outbuf);
-            free(*outbuf);
             *outbuf = tempbuf;
         }
 
@@ -278,7 +273,4 @@ char *buffer = calloc(insize,sizeof(char));
         fwrite(outbuf,sizeof(char),outsize,outfile);
     }
 
-    free(buffer);
-    free(tempbuf);
-    free(outbuf);
 }
\ No newline at end of file