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Polish n stacks solution

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Donne Martin 2016-02-21 16:20:29 -05:00
parent 9c441e9f18
commit 76da9ec98d
1 changed files with 13 additions and 15 deletions
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28
stacks_queues/n_stacks/n_stacks_solution.ipynb
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@ -119,20 +119,18 @@
" def push(self, stack_index, data):\n", " def push(self, stack_index, data):\n",
" if self.stack_pointers[stack_index] == self.stack_size - 1:\n", " if self.stack_pointers[stack_index] == self.stack_size - 1:\n",
" raise Exception('Stack is full')\n", " raise Exception('Stack is full')\n",
" else:\n", " self.stack_pointers[stack_index] += 1\n",
" self.stack_pointers[stack_index] += 1\n", " array_index = self.abs_index(stack_index)\n",
" array_index = self.abs_index(stack_index)\n", " self.stack_array[array_index] = data\n",
" self.stack_array[array_index] = data\n",
"\n", "\n",
" def pop(self, stack_index):\n", " def pop(self, stack_index):\n",
" if self.stack_pointers[stack_index] == -1:\n", " if self.stack_pointers[stack_index] == -1:\n",
" raise Exception('Stack is empty')\n", " raise Exception('Stack is empty')\n",
" else:\n", " array_index = self.abs_index(stack_index)\n",
" array_index = self.abs_index(stack_index)\n", " data = self.stack_array[array_index]\n",
" data = self.stack_array[array_index]\n", " self.stack_array[array_index] = None\n",
" self.stack_array[array_index] = None\n", " self.stack_pointers[stack_index] -= 1\n",
" self.stack_pointers[stack_index] -= 1\n", " return data"
" return data"
] ]
}, },
{ {
@ -237,21 +235,21 @@
], ],
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"mimetype": "text/x-python", "mimetype": "text/x-python",
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