euler29.ipynb

   1 {
   2  "cells": [
   3   {
   4    "cell_type": "code",
   5    "execution_count": 1,
   6    "metadata": {
   7     "collapsed": false
   8    },
   9    "outputs": [
  10     {
  11      "data": {
  12       "text/plain": [
  13        "false"
  14       ]
  15      },
  16      "execution_count": 1,
  17      "metadata": {},
  18      "output_type": "execute_result"
  19     }
  20    ],
  21    "source": [
  22     "require 'set'"
  23    ]
  24   },
  25   {
  26    "cell_type": "code",
  27    "execution_count": 2,
  28    "metadata": {
  29     "collapsed": false
  30    },
  31    "outputs": [
  32     {
  33      "data": {
  34       "text/plain": [
  35        "#<Set: {1, 2}>"
  36       ]
  37      },
  38      "execution_count": 2,
  39      "metadata": {},
  40      "output_type": "execute_result"
  41     }
  42    ],
  43    "source": [
  44     "Set.new([1,2])"
  45    ]
  46   },
  47   {
  48    "cell_type": "code",
  49    "execution_count": 4,
  50    "metadata": {
  51     "collapsed": false
  52    },
  53    "outputs": [
  54     {
  55      "data": {
  56       "text/plain": [
  57        "[[2, 2], [2, 3], [2, 4], [2, 5], [3, 2], [3, 3], [3, 4], [3, 5], [4, 2], [4, 3], [4, 4], [4, 5], [5, 2], [5, 3], [5, 4], [5, 5]]"
  58       ]
  59      },
  60      "execution_count": 4,
  61      "metadata": {},
  62      "output_type": "execute_result"
  63     }
  64    ],
  65    "source": [
  66     "(2..5).to_a.product((2..5).to_a)"
  67    ]
  68   },
  69   {
  70    "cell_type": "code",
  71    "execution_count": 5,
  72    "metadata": {
  73     "collapsed": false
  74    },
  75    "outputs": [
  76     {
  77      "data": {
  78       "text/plain": [
  79        "[4, 8, 16, 32, 9, 27, 81, 243, 16, 64, 256, 1024, 25, 125, 625, 3125]"
  80       ]
  81      },
  82      "execution_count": 5,
  83      "metadata": {},
  84      "output_type": "execute_result"
  85     }
  86    ],
  87    "source": [
  88     "(2..5).to_a.product((2..5).to_a).map {|a, b| a ** b}"
  89    ]
  90   },
  91   {
  92    "cell_type": "code",
  93    "execution_count": 6,
  94    "metadata": {
  95     "collapsed": false
  96    },
  97    "outputs": [
  98     {
  99      "data": {
 100       "text/plain": [
 101        "#<Set: {4, 8, 16, 32, 9, 27, 81, 243, 64, 256, 1024, 25, 125, 625, 3125}>"
 102       ]
 103      },
 104      "execution_count": 6,
 105      "metadata": {},
 106      "output_type": "execute_result"
 107     }
 108    ],
 109    "source": [
 110     "Set.new((2..5).to_a.product((2..5).to_a).map {|a, b| a ** b})"
 111    ]
 112   },
 113   {
 114    "cell_type": "code",
 115    "execution_count": 7,
 116    "metadata": {
 117     "collapsed": false
 118    },
 119    "outputs": [
 120     {
 121      "data": {
 122       "text/plain": [
 123        "15"
 124       ]
 125      },
 126      "execution_count": 7,
 127      "metadata": {},
 128      "output_type": "execute_result"
 129     }
 130    ],
 131    "source": [
 132     "Set.new((2..5).to_a.product((2..5).to_a).map {|a, b| a ** b}).length"
 133    ]
 134   },
 135   {
 136    "cell_type": "code",
 137    "execution_count": 8,
 138    "metadata": {
 139     "collapsed": false
 140    },
 141    "outputs": [
 142     {
 143      "data": {
 144       "text/plain": [
 145        "9183"
 146       ]
 147      },
 148      "execution_count": 8,
 149      "metadata": {},
 150      "output_type": "execute_result"
 151     }
 152    ],
 153    "source": [
 154     "Set.new((2..100).to_a.product((2..100).to_a).map {|a, b| a ** b}).length"
 155    ]
 156   },
 157   {
 158    "cell_type": "code",
 159    "execution_count": null,
 160    "metadata": {
 161     "collapsed": true
 162    },
 163    "outputs": [],
 164    "source": []
 165   }
 166  ],
 167  "metadata": {
 168   "kernelspec": {
 169    "display_name": "Ruby 2.4.0",
 170    "language": "ruby",
 171    "name": "ruby"
 172   },
 173   "language_info": {
 174    "file_extension": ".rb",
 175    "mimetype": "application/x-ruby",
 176    "name": "ruby",
 177    "version": "2.4.0"
 178   }
 179  },
 180  "nbformat": 4,
 181  "nbformat_minor": 0
 182 }