Added questions to all problem pages, solution workings for days 1 and 2

[ou-summer-of-code-2017.git] / 03-door-codes / door-codes-solution.ipynb

diff --git a/03-door-codes/door-codes-solution.ipynb b/03-door-codes/door-codes-solution.ipynb
index 7c5867f02f39e81d5b49d1a8d59699bba786f78d..b1fd1051589e9f2d4df18b83e280c0d3776ee42e 100644 (file)
--- a/03-door-codes/door-codes-solution.ipynb
+++ b/03-door-codes/door-codes-solution.ipynb
@@ -45,7 +45,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 2,
+   "execution_count": 3,
    "metadata": {
     "collapsed": true
    },
@@ -56,7 +56,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 3,
+   "execution_count": 4,
    "metadata": {
     "collapsed": true
    },
@@ -71,7 +71,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 4,
+   "execution_count": 5,
    "metadata": {},
    "outputs": [
     {
@@ -80,7 +80,7 @@
        "('a', 'z', 'z', 'a')"
       ]
      },
-     "execution_count": 4,
+     "execution_count": 5,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -91,14 +91,34 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 5,
+   "execution_count": 6,
    "metadata": {
     "collapsed": true
    },
    "outputs": [],
    "source": [
     "def sanitise(phrase):\n",
-    "    return ''.join(l for l in phrase if l in string.ascii_lowercase)"
+    "    return ''.join(l.lower() for l in phrase if l in string.ascii_letters)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 7,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "'helloworld'"
+      ]
+     },
+     "execution_count": 7,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "sanitise('Hello World')"
    ]
   },
   {