File size: 1,345 Bytes
ce5cd7e |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 |
{
"cells": [
{
"cell_type": "code",
"execution_count": 1,
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"[5, 6, 7, 1, 2, 3, 4]\n"
]
}
],
"source": [
"\"\"\"\n",
"Rotate an array of n elements to the right by k steps.\n",
"For example, with n = 7 and k = 3,\n",
"the array [1,2,3,4,5,6,7] is rotated to [5,6,7,1,2,3,4].\n",
"Note:\n",
"Try to come up as many solutions as you can,\n",
"there are at least 3 different ways to solve this problem.\n",
"\"\"\"\n",
"\n",
"org = [1,2,3,4,5,6,7]\n",
"result = org[:]\n",
"steps = 3\n",
"\n",
"for idx,num in enumerate(org):\n",
" if idx+steps < len(org):\n",
" result[idx+steps] = org[idx]\n",
" else:\n",
" result[idx+steps-len(org)] = org[idx]\n",
"\n",
"print(result)"
]
}
],
"metadata": {
"kernelspec": {
"display_name": "Python 3",
"language": "python",
"name": "python3"
},
"language_info": {
"codemirror_mode": {
"name": "ipython",
"version": 3
},
"file_extension": ".py",
"mimetype": "text/x-python",
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.6.1"
}
},
"nbformat": 4,
"nbformat_minor": 2
}
|