1 files changed, 9 insertions, 0 deletions
diff --git a/src/02/04/hash.h b/src/02/04/hash.h
index 6301584..b87f06c 100644
--- a/src/02/04/hash.h
+++ b/src/02/04/hash.h
@@ -1,4 +1,13 @@
+typedef struct node {
+  struct node *next;
+  int data;
+} Node;
+
 typedef struct {
+  Node buckets[13];
+  int size;
 } Hash;
 
 Hash *hash_init(int size);
+int hash_get(Hash *hash, int key);
+void hash_set(Hash *hash, int key, int value);