interactive-coding-challenges/arrays_strings/fizz_buzz/fizz_buzz_challenge.ipynb
2017-02-14 06:19:21 -05:00

203 lines
4.7 KiB
Python

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"cell_type": "markdown",
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"source": [
"This notebook was prepared by [Donne Martin](https://github.com/donnemartin). Source and license info is on [GitHub](https://github.com/donnemartin/interactive-coding-challenges)."
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"# Challenge Notebook"
]
},
{
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"metadata": {},
"source": [
"## Problem: Implement Fizz Buzz.\n",
"\n",
"* [Constraints](#Constraints)\n",
"* [Test Cases](#Test-Cases)\n",
"* [Algorithm](#Algorithm)\n",
"* [Code](#Code)\n",
"* [Unit Test](#Unit-Test)\n",
"* [Solution Notebook](#Solution-Notebook)"
]
},
{
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"source": [
"## Constraints\n",
"\n",
"* What is fizz buzz?\n",
" * Return the string representation of numbers from 1 to n\n",
" * Multiples of 3 -> 'Fizz'\n",
" * Multiples of 5 -> 'Buzz'\n",
" * Multiples of 3 and 5 -> 'FizzBuzz'\n",
"* Can we assume the inputs are valid?\n",
" * No\n",
"* Can we assume this fits memory?\n",
" * Yes"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Test Cases\n",
"\n",
"<pre>\n",
"* None -> Exception\n",
"* < 1 -> Exception\n",
"* 15 ->\n",
"[\n",
" '1',\n",
" '2',\n",
" 'Fizz',\n",
" '4',\n",
" 'Buzz',\n",
" 'Fizz',\n",
" '7',\n",
" '8',\n",
" 'Fizz',\n",
" 'Buzz',\n",
" '11',\n",
" 'Fizz',\n",
" '13',\n",
" '14',\n",
" 'FizzBuzz'\n",
"]\n",
"</pre>"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Algorithm\n",
"\n",
"Refer to the [Solution Notebook](http://nbviewer.ipython.org/github/donnemartin/interactive-coding-challenges/blob/master/arrays_strings/fizz_buzz/fizz_buzz_solution.ipynb). If you are stuck and need a hint, the solution notebook's algorithm discussion might be a good place to start."
]
},
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"cell_type": "markdown",
"metadata": {},
"source": [
"## Code"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {
"collapsed": false
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"outputs": [],
"source": [
"class Solution(object):\n",
"\n",
" def fizz_buzz(self, num):\n",
" # TODO: Implement me\n",
" pass"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Unit Test"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"**The following unit test is expected to fail until you solve the challenge.**"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {
"collapsed": false
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"outputs": [],
"source": [
"# %load test_fizz_buzz.py\n",
"from nose.tools import assert_equal, assert_raises\n",
"\n",
"\n",
"class TestFizzBuzz(object):\n",
"\n",
" def test_fizz_buzz(self):\n",
" solution = Solution()\n",
" assert_raises(TypeError, solution.fizz_buzz, None)\n",
" assert_raises(ValueError, solution.fizz_buzz, 0)\n",
" expected = [\n",
" '1',\n",
" '2',\n",
" 'Fizz',\n",
" '4',\n",
" 'Buzz',\n",
" 'Fizz',\n",
" '7',\n",
" '8',\n",
" 'Fizz',\n",
" 'Buzz',\n",
" '11',\n",
" 'Fizz',\n",
" '13',\n",
" '14',\n",
" 'FizzBuzz'\n",
" ]\n",
" assert_equal(solution.fizz_buzz(15), expected)\n",
" print('Success: test_fizz_buzz')\n",
"\n",
"\n",
"def main():\n",
" test = TestFizzBuzz()\n",
" test.test_fizz_buzz()\n",
"\n",
"\n",
"if __name__ == '__main__':\n",
" main()"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Solution Notebook\n",
"\n",
"Review the [Solution Notebook](http://nbviewer.ipython.org/github/donnemartin/interactive-coding-challenges/blob/master/arrays_strings/fizz_buzz/fizz_buzz_solution.ipynb) for a discussion on algorithms and code solutions."
]
}
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