1 files changed, 14 insertions, 0 deletions
diff --git a/src/set.h b/src/set.h
new file mode 100644
index 0000000..b92d229
--- /dev/null
+++ b/src/set.h
@@ -0,0 +1,14 @@
+#ifndef SET_H
+#define SET_H
+
+typedef struct set {
+    struct set *parent;
+    int rank;
+} set;
+
+set *set_create();
+void set_free(set *s);
+
+set *set_find(set *s);
+void set_union(set *x, set *y);
+#endif