2020 - days 1 and 2

Author: joaomlneto

2020/01/input.txt

@@ -0,0 +1,200 @@
+1036
+1897
+1256
+1080
+1909
+1817
+1759
+1883
+1088
+1841
+1780
+1907
+1874
+1831
+1932
+1999
+1989
+1840
+1973
+1102
+1906
+1277
+1089
+1275
+1228
+1917
+1075
+1060
+1964
+1942
+2001
+1950
+1181
+1121
+1854
+1083
+1772
+1481
+1976
+1805
+1594
+1889
+1726
+1866
+798
+1739
+1709
+1946
+1948
+1808
+1836
+1849
+1465
+1066
+1943
+664
+1894
+1993
+1061
+1225
+1589
+1916
+1885
+1998
+1470
+1668
+1666
+1499
+1437
+1986
+1127
+1875
+1132
+1888
+1877
+1046
+1982
+1265
+1757
+1848
+1786
+1638
+1958
+1015
+1013
+1552
+1742
+1850
+1016
+1839
+558
+1826
+1261
+1988
+1545
+1078
+1963
+1967
+1951
+1086
+1947
+1880
+1903
+1994
+1167
+1736
+1041
+1652
+1040
+1033
+1179
+1844
+1861
+1488
+1962
+1135
+1347
+1187
+1777
+1598
+1803
+1147
+1760
+1926
+1898
+1923
+1865
+1313
+1924
+1023
+1576
+1715
+1391
+1346
+1882
+2000
+1024
+1143
+1065
+1560
+1029
+1119
+1966
+1022
+1931
+1512
+1049
+1929
+1312
+1069
+1159
+1053
+1249
+1074
+1983
+1761
+1868
+195
+24
+1331
+1636
+1020
+1034
+1671
+708
+1699
+1900
+1927
+1829
+301
+1832
+1042
+1896
+1928
+1032
+1992
+2005
+1955
+1047
+1068
+1001
+1052
+1744
+1845
+1208
+1018
+1859
+1342
+1823
+1758
+2007
+1241
+1893
+1876
+1984
+1655
+1534
+1150
+1789
+1870

2020/01/main.js

@@ -0,0 +1,32 @@
+const fs = require('fs')
+
+const file = fs.readFileSync('input.txt').toString('utf8');
+
+const values = file.split('\n').map(x => Number(x)).sort();
+
+for (let i=0; i < values.length; i++) {
+  for (let j=i+1; j < values.length; j++) {
+    if (values[i] + values[j] == 2020) {
+      console.log('Found pair of values!')
+      console.log(`values[${i}] = ${values[i]}`)
+      console.log(`values[${j}] = ${values[j]}`)
+      console.log('Multiplied they are ' + (values[i] * values[j]))
+    }
+  }
+}
+
+console.log('\n')
+
+for (let i=0; i < values.length; i++) {
+  for (let j=i+1; j < values.length; j++) {
+    for (let k=j+1; k < values.length; k++) {
+      if (values[i] + values[j] + values[k] == 2020) {
+        console.log('Found tripled of values!')
+        console.log(`values[${i}] = ${values[i]}`)
+        console.log(`values[${j}] = ${values[j]}`)
+        console.log(`values[${k}] = ${values[k]}`)
+        console.log('Multiplied they are ' + (values[i] * values[j] * values[k]))
+      }
+    }
+  }
+}