{ "cells": [ { "cell_type": "markdown", "metadata": {}, "source": [ "# Ticket pricing\n", "\n", "You've been shopping around for a holiday package deal and its time to make your choice of which deal to go with. The file [01-holidays.txt](01-holidays.txt) contains a summary of your investigations. \n", "\n", "It's a simple text file, with one possible holiday package per line.\n", "\n", "Each line has four fields, separated by spaces. They are:\n", "* The deal ID, from the price comparison website you found it.\n", "* The holiday price, in whole pounds.\n", "* The location of the holiday, always a single word.\n", "* The number of nights you'd be staying. \n", "\n", "For example, the data file might look like this:\n", "\n", "```\n", "db61bb90 769 Morgantown 3\n", "202c898b5f 1284 Morgantown 21\n", "def36ffcd 1514 Giessenmestia 21\n", "389018bd0707 1052 Estacada 21\n", "a487c4270 782 Geoje-Si 14\n", "6caf2584a55 724 Stonington-Island 14\n", "199608abc5 1209 Nordkapp 21\n", "```" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "## Part 1\n", "You have a budget of £1200. How many of the holidays can you afford?\n", "\n", "Given the example data above, you could afford four of the holidays: the trips to Estacada, Geoje-Si and Stonnington-Island, and the three-day trip to Morgantown. \n", "\n", "The 21 day trip to Morgantown and the trips to Giessenmestia and Nordkapp are all too expensive." ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "# Part 2\n", "You don't just want _a_ holiday. You want the _best_ holiday. What is the code of the holiday which would give you the best value?\n", "\n", "The \"value\" of a holiday is the duration per pound. Because some destinations are better than others, you'll want to scale the value for some locations. For instance, a night in Timbuktu is worth three times as much as a holiday in Bletchley.\n", "\n", "Assume all holidays have a relative value of 1, apart from these destinations.\n", "\n", "| Destination | Score |\n", "|-------------|-------|\n", "| Almaty | 2.0 |\n", "| Brorfelde | 0.9 |\n", "| Estacada | 0.4 |\n", "| Jayuya | 0.6 |\n", "| Karlukovo | 2.2 |\n", "| Morgantown | 2.9 |\n", "| Nordkapp | 1.5 |\n", "| Nullarbor | 2.2 |\n", "| Puente-Laguna-Garzonkuala-Penyu | 0.4 |\n", "| Uzupis | 0.9 |\n", "\n", "## Example\n", "\n", "Given the holiday list above, the holiday to Geoje-Si (with the standard weighting of 1) has a value of $\\frac{14}{782} = 0.0179$ nights per pound. \n", "\n", "The trip to Estacada looks promising, at $\\frac{21}{1052} = 0.0200$ nights per pound. Unfortunately, the weighting for Estacada is low, to the adjusted cost is $0.4 \\times \\frac{21}{1052} = 0.00798$ nights per pound.\n", "\n", "The best value holiday is the 21 day trip to Morgantown, with a value of $2.9 \\times \\frac{21}{1284} = 0.0474$ nights per pound. Unfortunately, it's unaffordable. \n", "\n", "The best value affordable holiday is the trip to Stonnington Island, with $\\frac{14}{1284} = 0.0193$ nights per pound." ] }, { "cell_type": "code", "execution_count": null, "metadata": { "collapsed": true }, "outputs": [], "source": [] } ], "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": "3.5.2+" } }, "nbformat": 4, "nbformat_minor": 2 }