1 files changed, 9 insertions, 6 deletions
diff --git a/inc/stack.h b/inc/stack.h
index fcc976a..45f8daa 100644
--- a/inc/stack.h
+++ b/inc/stack.h
@@ -5,13 +5,16 @@
 
 struct stack_st {
     int len;
-    int arr[STACK_SIZE];
+    int size;
+    int* arr;
 };
 
-void stackPush(int val);
-int stackPop(void);
-int stackIsEmpty(void);
-int stackPeek(void);
-void stackPrint(void);
+void stackPush(struct stack_st *s, int val);
+int stackPop(struct stack_st *s);
+int stackIsEmpty(struct stack_st *s);
+int stackPeek(struct stack_st *s);
+void stackPrint(struct stack_st *s);
+
+void stackFree(struct stack_st *s);
 
 #endif