Update utils/examples.json

utils/examples.json

@@ -1,8 +1,13 @@
 [
+    {
+        "name": "Hello World!",
+        "value": "def print_hello_world():\n    \"\"\"Print 'Hello World!'.\"\"\"",
+        "length": 8
+    },
     {
         "name": "Scikit-Learn",
         "value": "import numpy as np\nfrom sklearn.ensemble import RandomForestClassifier\n\n# create training data\nX = np.random.randn(100, 100)\ny = np.random.randint(0, 1, 100)\n\n# setup train test split",
-        "length": 96
+        "length": 52
     },
     {
         "name": "Transformers",
@@ -12,7 +17,7 @@
     {
         "name": "Count words",
         "value": "def count_words(filename):\n    \"\"\"Count the number of occurrences of each word in the file\"\"\"",
-        "length": 60
+        "length": 48
     },
     {
         "name": "Is e in L",
@@ -22,13 +27,13 @@
     {
         "name": "unittest",
         "value": "def is_even(value):\n    \"\"\"Returns True if value is an even number.\"\"\"\n    return value % 2 == 0\n\n# setup unit tests for is_even\nimport unittest",
-        "length": 64
+        "length": 52
 
     },
     {
         "name": "Pizza Problem",
         "value": "def exercise():\n    \"\"\"Marie ordered one chicken meal that costs 12 dollars, and some boxes of pizza. Marie paid a total of 44 dollars. How many boxes of pizza did Marie order if each box costs 8 dollars?\"\"\"",
-        "length": 56
+        "length": 52
     },
     {
         "name": "Pandas",