Day two of Advent of Code 2017

advent_of_code_day_2017_day_2.rb

# Day 2: Corruption Checksum
# https://adventofcode.com/2017/day/2

rows =[
  [493,458,321,120,49,432,433,92,54,452,41,461,388,409,263,58],
  [961,98,518,188,958,114,1044,881,948,590,972,398,115,116,451,492],
  [76,783,709,489,617,72,824,452,748,737,691,90,94,77,84,756],
  [204,217,90,335,220,127,302,205,242,202,259,110,118,111,200,112],
  [249,679,4015,106,3358,1642,228,4559,307,193,4407,3984,3546,2635,3858,924],
  [1151,1060,2002,168,3635,3515,3158,141,4009,3725,996,142,3672,153,134,1438],
  [95,600,1171,1896,174,1852,1616,928,79,1308,2016,88,80,1559,1183,107],
  [187,567,432,553,69,38,131,166,93,132,498,153,441,451,172,575],
  [216,599,480,208,224,240,349,593,516,450,385,188,482,461,635,220],
  [788,1263,1119,1391,1464,179,1200,621,1304,55,700,1275,226,57,43,51],
  [1571,58,1331,1253,60,1496,1261,1298,1500,1303,201,73,1023,582,69,339],
  [80,438,467,512,381,74,259,73,88,448,386,509,346,61,447,435],
  [215,679,117,645,137,426,195,619,268,223,792,200,720,260,303,603],
  [631,481,185,135,665,641,492,408,164,132,478,188,444,378,633,516],
  [1165,1119,194,280,223,1181,267,898,1108,124,618,1135,817,997,129,227],
  [404,1757,358,2293,2626,87,613,95,1658,147,75,930,2394,2349,86,385]
]

difference = []

rows.each do |row|
  difference << row.max - row.min
end

puts difference.inject(0, :+)