Day 2 Puzzle 2.rb

testInput = [1721,
  979,
  366,
  299,
  675,
  1456]
input = [1078,
  1109,
  1702,
  1293,
  1541,
  1422,
  1679,
  1891,
  1898,
  1455,
  1540,
  1205,
  1971,
  1582,
  1139,
  1438,
  1457,
  1725,
  1907,
  1872,
  1101,
  1403,
  1557,
  1597,
  1619,
  1974,
  1287,
  292,
  1647,
  1444,
  1241,
  879,
  1761,
  1067,
  1178,
  1510,
  1110,
  1233,
  1121,
  1299,
  1796,
  1124,
  1768,
  1466,
  1871,
  1279,
  1344,
  1485,
  1258,
  1179,
  1147,
  492,
  1234,
  1843,
  1421,
  1819,
  1964,
  1671,
  1793,
  1302,
  1731,
  1886,
  1686,
  1150,
  1806,
  1960,
  1841,
  1936,
  1845,
  1520,
  1779,
  1102,
  1323,
  1892,
  1742,
  1941,
  1395,
  1525,
  1165,
  715,
  1829,
  1448,
  1906,
  1191,
  1981,
  1115,
  1716,
  1644,
  1310,
  1836,
  1105,
  1517,
  1790,
  1950,
  1741,
  1256,
  1467,
  1677,
  1372,
  1838,
  1637,
  1143,
  1763,
  1222,
  1291,
  1835,
  1602,
  1927,
  1933,
  1952,
  1692,
  1662,
  1967,
  1791,
  1984,
  1176,
  1324,
  1460,
  1416,
  562,
  1862,
  1273,
  1518,
  1535,
  1093,
  1977,
  1923,
  1246,
  1570,
  1674,
  1861,
  1811,
  1431,
  47,
  1158,
  1912,
  1322,
  1062,
  1407,
  1528,
  1068,
  1868,
  1997,
  1930,
  959,
  1676,
  1759,
  2000,
  1993,
  1722,
  1738,
  1264,
  1361,
  1542,
  1187,
  1735,
  1405,
  1745,
  1753,
  1833,
  1493,
  1311,
  1547,
  1180,
  1553,
  1513,
  1812,
  1951,
  1948,
  1834,
  1925,
  1726,
  1326,
  1931,
  1962,
  1947,
  1173,
  1633,
  1901,
  1781,
  1483,
  1789,
  1417,
  1929,
  1859,
  1760,
  1347,
  1996,
  1328,
  1798,
  1230,
  1298,
  1877,
  1840,
  1607,
  1253,
  1057,
  1650,
  1171,
  1593]

def findEntriesThatSumTo2020(inputArray)
  resultArray = [0, 0, 0]
  i = 0
  while i < inputArray.length()
    j = 0
    while j < inputArray.length()
      k = 0
      while k < inputArray.length()
        number1 = inputArray[i]
        number2 = inputArray[j]
        number3 = inputArray[k]
        if number1 + number2 + number3 == 2020
          resultArray[0] = number1
          resultArray[1] = number2
          resultArray[2] = number3
        end
        k += 1
      end
      j += 1
    end
    i += 1
  end
  print resultArray
  # result for testInput: [299, 1721]
  # result for input: [1528, 492]
  return resultArray
end

def sumResults(threeNumbers)
  print threeNumbers[0]*threeNumbers[1]*threeNumbers[2]
  # result for testInput: 514579
  # result for testInput: 751776
  return threeNumbers[0]*threeNumbers[1]*threeNumbers[2]
end

sumResults(findEntriesThatSumTo2020(testInput))
# [675, 366, 979] 241861950
sumResults(findEntriesThatSumTo2020(input))
# [47, 715, 1258] 42275090