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Moved pythonic solution after the initial python solution and prior to the C solution.

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Donne Martin 2015-06-23 22:38:55 -04:00
parent 7ee5a4da8f
commit 7ec208b0eb
1 changed files with 35 additions and 35 deletions
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70
arrays-strings/reverse_string.ipynb
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@ -17,9 +17,9 @@
"* [Test Cases](#Test-Cases)\n", "* [Test Cases](#Test-Cases)\n",
"* [Algorithm](#Algorithm)\n", "* [Algorithm](#Algorithm)\n",
"* [Code](#Code)\n", "* [Code](#Code)\n",
"* [Pythonic-Code](#Pythonic-Code)\n",
"* [C Algorithm](C-Algorithm)\n", "* [C Algorithm](C-Algorithm)\n",
"* [C Code]()\n", "* [C Code]()"
"* [Pythonic-Code](#Pythonic-Code)"
] ]
}, },
{ {
@ -47,7 +47,7 @@
}, },
{ {
"cell_type": "code", "cell_type": "code",
"execution_count": 3, "execution_count": null,
"metadata": { "metadata": {
"collapsed": false "collapsed": false
}, },
@ -92,7 +92,7 @@
}, },
{ {
"cell_type": "code", "cell_type": "code",
"execution_count": 4, "execution_count": null,
"metadata": { "metadata": {
"collapsed": false "collapsed": false
}, },
@ -111,6 +111,37 @@
"run_tests(reverse_string)" "run_tests(reverse_string)"
] ]
}, },
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Pythonic-Code\n",
"\n",
"This question has an artificial constraint that prevented the use of the slice operator and the reversed method. For completeness, the solutions for these are provided below."
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {
"collapsed": false
},
"outputs": [],
"source": [
"def reverse_string_alt(string):\n",
" if string is None:\n",
" return None\n",
" return string[::-1]\n",
"\n",
"def reverse_string_alt2(string):\n",
" if string is None:\n",
" return None \n",
" return ''.join(reversed(string))\n",
"\n",
"run_tests(reverse_string_alt)\n",
"run_tests(reverse_string_alt2)"
]
},
{ {
"cell_type": "markdown", "cell_type": "markdown",
"metadata": {}, "metadata": {},
@ -189,37 +220,6 @@
" return 0;\n", " return 0;\n",
"}" "}"
] ]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Pythonic-Code\n",
"\n",
"This question has an artificial constraint that prevented the use of the slice operator and the reversed method. For completeness, the solutions for these are provided below."
]
},
{
"cell_type": "code",
"execution_count": 7,
"metadata": {
"collapsed": false
},
"outputs": [],
"source": [
"def reverse_string_alt(string):\n",
" if string is None:\n",
" return None\n",
" return string[::-1]\n",
"\n",
"def reverse_string_alt2(string):\n",
" if string is None:\n",
" return None \n",
" return ''.join(reversed(string))\n",
"\n",
"run_tests(reverse_string_alt)\n",
"run_tests(reverse_string_alt2)"
]
} }
], ],
"metadata": { "metadata": {