1 files changed, 33 insertions, 0 deletions
diff --git a/structures/queue.h b/structures/queue.h
new file mode 100644
index 0000000..368da01
--- /dev/null
+++ b/structures/queue.h
@@ -0,0 +1,33 @@
+#pragma once
+
+struct queue
+{
+    int inf;
+    queue *next;
+};
+
+void push(queue *&h, queue *&t, int x)
+{
+    queue *r = new queue;
+    r->inf = x;
+    r->next = NULL;
+    
+    if (!h && !t)
+        h = t = r;
+    else
+    {
+        t->next = r;
+        t = r;
+    }
+}
+
+int pop(queue *&h, queue *&t)
+{
+    queue *r = h;
+    int i = h->inf;
+    h = h->next;
+
+    if (!h) t = NULL;
+    delete r;
+    return i;
+}