From 170f32b7e01bd51b6c11f526e4bbbb7d132e6df3 Mon Sep 17 00:00:00 2001
From: Donne Martin <donne.martin@gmail.com>
Date: Fri, 3 Jul 2015 20:10:14 -0400
Subject: [PATCH] Tweaked quick sort challenge.

---
 .../quick_sort/quick_sort_challenge.ipynb     | 26 +++++++++++++++----
 .../quick_sort/quick_sort_solution.ipynb      | 18 ++++++++-----
 2 files changed, 33 insertions(+), 11 deletions(-)

diff --git a/sorting_searching/quick_sort/quick_sort_challenge.ipynb b/sorting_searching/quick_sort/quick_sort_challenge.ipynb
index 1c42b7d..550dd65 100644
--- a/sorting_searching/quick_sort/quick_sort_challenge.ipynb
+++ b/sorting_searching/quick_sort/quick_sort_challenge.ipynb
@@ -4,7 +4,14 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "<small><i>This notebook was prepared by [Donne Martin](http://donnemartin.com). Source and license info is on [GitHub](https://bit.ly/code-notes).</i></small>"
+    "<small><i>This notebook was prepared by [Donne Martin](http://donnemartin.com). Source and license info is on [GitHub](https://github.com/donnemartin/coding-challenges).</i></small>"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Challenge Notebook"
    ]
   },
   {
@@ -18,7 +25,7 @@
     "* [Algorithm](#Algorithm)\n",
     "* [Code](#Code)\n",
     "* [Unit Test](#Unit-Test)\n",
-    "* [Pythonic-Code](#Pythonic-Code)"
+    "* [Solution Notebook](#Solution-Notebook)"
    ]
   },
   {
@@ -27,7 +34,7 @@
    "source": [
     "## Constraints\n",
     "\n",
-    "*Problem statements are often intentionally ambiguous.  Identifying constraints and stating assumptions can help to ensure you code the intended solution.*\n",
+    "*Problem statements are sometimes ambiguous.  Identifying constraints and stating assumptions can help to ensure you code the intended solution.*\n",
     "\n",
     "* Is a naiive solution sufficient (ie not in-place)?\n",
     "    * Yes"
@@ -50,7 +57,7 @@
    "source": [
     "## Algorithm\n",
     "\n",
-    "Refer to the solution notebook.  If you are stuck and need a hint, the solution notebook's algorithm discussion might be a good place to start."
+    "Refer to the [Solution Notebook](http://nbviewer.ipython.org/github/donnemartin/coding-challenges/blob/master/sorting_searching/quick_sort/quick_sort_solution.ipynb).  If you are stuck and need a hint, the solution notebook's algorithm discussion might be a good place to start."
    ]
   },
   {
@@ -79,7 +86,7 @@
    "source": [
     "## Unit Test\n",
     "\n",
-    "*It is important to identify and run through general and edge cases from the [Test Cases](#Test-Cases) section by hand.  You generally will not be asked to write a unit test like what is shown below.*\n",
+    "\n",
     "\n",
     "**The following unit test is expected to fail until you solve the challenge.**"
    ]
@@ -128,6 +135,15 @@
     "if __name__ == '__main__':\n",
     "    main()"
    ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Solution Notebook\n",
+    "\n",
+    "Review the [Solution Notebook](http://nbviewer.ipython.org/github/donnemartin/coding-challenges/blob/master/sorting_searching/quick_sort/quick_sort_solution.ipynb) for a discussion on algorithms and code solutions."
+   ]
   }
  ],
  "metadata": {
diff --git a/sorting_searching/quick_sort/quick_sort_solution.ipynb b/sorting_searching/quick_sort/quick_sort_solution.ipynb
index 307caea..8821111 100644
--- a/sorting_searching/quick_sort/quick_sort_solution.ipynb
+++ b/sorting_searching/quick_sort/quick_sort_solution.ipynb
@@ -4,7 +4,14 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "<small><i>This notebook was prepared by [Donne Martin](http://donnemartin.com). Source and license info is on [GitHub](https://bit.ly/code-notes).</i></small>"
+    "<small><i>This notebook was prepared by [Donne Martin](http://donnemartin.com). Source and license info is on [GitHub](https://github.com/donnemartin/coding-challenges).</i></small>"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Solution Notebook"
    ]
   },
   {
@@ -17,8 +24,8 @@
     "* [Test Cases](#Test-Cases)\n",
     "* [Algorithm](#Algorithm)\n",
     "* [Code](#Code)\n",
-    "* [Unit Test](#Unit-Test)\n",
-    "* [Pythonic-Code](#Pythonic-Code)"
+    "* [Pythonic-Code](#Pythonic-Code)\n",
+    "* [Unit Test](#Unit-Test)"
    ]
   },
   {
@@ -27,7 +34,7 @@
    "source": [
     "## Constraints\n",
     "\n",
-    "*Problem statements are often intentionally ambiguous.  Identifying constraints and stating assumptions can help to ensure you code the intended solution.*\n",
+    "*Problem statements are sometimes ambiguous.  Identifying constraints and stating assumptions can help to ensure you code the intended solution.*\n",
     "\n",
     "* Is a naiive solution sufficient (ie not in-place)?\n",
     "    * Yes"
@@ -134,8 +141,7 @@
    "metadata": {},
    "source": [
     "## Unit Test\n",
-    "\n",
-    "*It is important to identify and run through general and edge cases from the [Test Cases](#Test-Cases) section by hand.  You generally will not be asked to write a unit test like what is shown below.*"
+    "\n"
    ]
   },
   {