From 5a2665c21b511ef90967af053f6a1d504b78afff Mon Sep 17 00:00:00 2001
From: Maksymilian Jopek <maks@jopek.eu>
Date: Sun, 26 Mar 2023 15:53:00 +0200
Subject: Stack, queue and graph data structures implemented in C using linked
 lists.

---
 src/queue.h | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 src/queue.h

(limited to 'src/queue.h')

diff --git a/src/queue.h b/src/queue.h
new file mode 100644
index 0000000..0082bda
--- /dev/null
+++ b/src/queue.h
@@ -0,0 +1,20 @@
+#ifndef QUEUE_H_
+#define QUEUE_H_
+
+struct queue {
+  struct queueItem *first;
+  struct queueItem *last;
+};
+typedef struct queue Queue;
+struct queueItem {
+  int item;
+  struct queueItem *next;
+  struct queueItem *previous;
+};
+
+Queue *queueAlloc();
+void queueAdd(Queue *queue, int item);
+int queuePop(Queue *queue);
+void queueFree(Queue *queue);
+
+#endif
-- 
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