diff --git a/treeset/Makefile b/treeset/Makefile
deleted file mode 100644
index 6dae1fd..0000000
--- a/treeset/Makefile
+++ /dev/null
@@ -1,14 +0,0 @@
-CC = gcc
-CFLAGS = -Wall -O2
-
-TARGET = main.elf
-SRC = main.c treeset.c
-
-#LDFLAGS =
-
-$(TARGET): $(SRC)
-	@echo CC $@
-	@$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
-
-clean:
-	rm -f $(TARGET)
diff --git a/treeset/main.c b/treeset/main.c
deleted file mode 100644
index 34517c4..0000000
--- a/treeset/main.c
+++ /dev/null
@@ -1,7 +0,0 @@
-#include "treeset.h"
-#include <stdio.h>
-
-int main() {
-    treeset_t tree = {};
-    return 0;
-}
diff --git a/treeset/treeset.c b/treeset/treeset.c
deleted file mode 100644
index c6d1687..0000000
--- a/treeset/treeset.c
+++ /dev/null
@@ -1,27 +0,0 @@
-#include "treeset.h"
-#include <stdlib.h>
-#include <string.h>
-
-struct treeset_node {
-    void                *data;
-    struct treeset_node *left;
-    struct treeset_node *right;
-};
-
-struct treeset {
-    treeset_node_t *root;
-    size_t          node_count;
-};
-
-void ts_node_destroy(treeset_node_t *n) {
-    if (n->left != NULL)
-        ts_node_destroy((treeset_node_t *)n->left);
-    if (n->right != NULL)
-        ts_node_destroy((treeset_node_t *)n->left);
-
-    free(n);
-}
-
-void treeset_destroy(treeset_t *set) {
-    ts_node_destroy(set->root);
-}
diff --git a/treeset/treeset.h b/treeset/treeset.h
deleted file mode 100644
index 8f4dea7..0000000
--- a/treeset/treeset.h
+++ /dev/null
@@ -1,26 +0,0 @@
-#pragma once
-
-#include <stddef.h>
-
-typedef struct treeset      treeset_t;
-typedef struct treeset_node treeset_node_t;
-
-/*
- * Cast a and b to your custom struct and return:
- * 1 for greater than
- * -1 for less than
- *  0 for equal
- */
-int treeset_demo_cmp(void *a, void *b) {
-    if (*((int *)a) > *((int *)a))
-        return -1;
-    if (*((int *)a) < *((int *)a))
-        return 1;
-
-    return 0;
-}
-
-void treeset_destroy(treeset_t *set);
-void put(treeset_t *set, void *data, int (*cmp)(void *, void *));
-// contains
-// remove