From e7dd5245c35d2794f59bcf700a6a92009ec8c478 Mon Sep 17 00:00:00 2001
From: Preston Pan <preston@nullring.xyz>
Date: Fri, 28 Jun 2024 21:30:42 -0700
Subject: stuff

---
 mindmap/stack.org | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'mindmap/stack.org')

diff --git a/mindmap/stack.org b/mindmap/stack.org
index 74d0138..9f05a5e 100644
--- a/mindmap/stack.org
+++ b/mindmap/stack.org
@@ -4,3 +4,10 @@
 #+title: stack
 #+author: Preston Pan
 #+html_head: <link rel="stylesheet" type="text/css" href="../style.css" />
+* Introduction
+A stack in programming is a data structure that satisfies the following API rules:
+1. Push: puts something on the top of the stack
+2. Pop: takes item off stack and gives it to the caller
+3. Peek: hands copy of top item on the stack to caller
+4. isEmpty: checks if the stack size is zero
+where stacks generally store their data in a list, either an array or a singly linked list.
-- 
cgit