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Polish find loop start challenge and solution

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Change slow and fast nodes equality check from their data value to an object check.
This commit is contained in:
Donne Martin 2016-06-12 23:22:27 -04:00
parent 2dd8f4ac55
commit 47e34b10dd
2 changed files with 8 additions and 8 deletions
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10
linked_lists/find_loop_start/find_loop_start_challenge.ipynb
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@ -186,21 +186,21 @@
], ],
"metadata": { "metadata": {
"kernelspec": { "kernelspec": {
"display_name": "Python 2", "display_name": "Python 3",
"language": "python", "language": "python",
"name": "python2" "name": "python3"
}, },
"language_info": { "language_info": {
"codemirror_mode": { "codemirror_mode": {
"name": "ipython", "name": "ipython",
"version": 2 "version": 3
}, },
"file_extension": ".py", "file_extension": ".py",
"mimetype": "text/x-python", "mimetype": "text/x-python",
"name": "python", "name": "python",
"nbconvert_exporter": "python", "nbconvert_exporter": "python",
"pygments_lexer": "ipython2", "pygments_lexer": "ipython3",
"version": "2.7.10" "version": "3.5.0"
} }
}, },
"nbformat": 4, "nbformat": 4,

6
linked_lists/find_loop_start/find_loop_start_solution.ipynb
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@ -111,10 +111,10 @@
" fast = fast.next.next\n", " fast = fast.next.next\n",
" if fast is None:\n", " if fast is None:\n",
" return None\n", " return None\n",
" if slow.data == fast.data:\n", " if slow == fast:\n",
" break\n", " break\n",
" slow = self.head\n", " slow = self.head\n",
" while slow.data != fast.data:\n", " while slow != fast:\n",
" slow = slow.next\n", " slow = slow.next\n",
" fast = fast.next\n", " fast = fast.next\n",
" if fast is None:\n", " if fast is None:\n",
@ -238,7 +238,7 @@
"name": "python", "name": "python",
"nbconvert_exporter": "python", "nbconvert_exporter": "python",
"pygments_lexer": "ipython3", "pygments_lexer": "ipython3",
"version": "3.4.3" "version": "3.5.0"
} }
}, },
"nbformat": 4, "nbformat": 4,