diff --git a/heap.cpp b/heap.cpp
new file mode 100644
index 0000000..d63e3dc
--- /dev/null
+++ b/heap.cpp
@@ -0,0 +1,27 @@
+#include <vector>
+#include <algorithm>
+#include <iostream>
+
+int main() {
+    std::vector<int> v = {3, 5, 1, 2, 9, 0, 6, 15};
+
+    //* init
+    std::make_heap(v.begin(), v.end(), std::greater<int>());
+
+    //* pop
+    std::cout << "1: " << v.front() << '\n';
+    std::pop_heap(v.begin(), v.end(), std::greater<int>());
+    v.pop_back();
+
+    //* push
+    v.push_back(666);
+    std::push_heap(v.begin(), v.end(), std::greater<int>());
+
+    int i = 2;
+    while (v.size()) {
+        std::cout << i++ << ": " << v.front() << '\n';
+        std::pop_heap(v.begin(), v.end(), std::greater<int>());
+        v.pop_back();
+    }
+    return 0;
+}
\ No newline at end of file