{ "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 }